Citing Sources in Scientific Research Papers
Proper citation is a critical component of scientific research writing. It allows readers to locate the sources that were used in the research in order to verify or build upon the findings and conclusions. There are standardized citation formats that must be followed in research writing to avoid plagiarism and to allow sources to be easily identified and retrieved. The most widely used format for scientific papers is that of the American Psychological Association, or APA. This article will provide an in-depth overview of the APA citation style format for citing sources within the text of a paper and in a references list.
In-Text Citations
The APA citation format requires the use of author(s) and date in citing a source within the text of a paper. Depending on the number of authors for a source, the full names are used or the name of the first author followed by “et al.” Footnote or endnote citations are not used in APA style. Examples of basic parenthetical citations include:
(Smith, 2020)
(Smith & Jones, 2018)
(Smith et al., 2017)
For direct quotes, also include a page number in the citation:
(Smith, 2020, p. 42)
For sources with corporate or group authors, the full name of the group is used the first time and then abbreviated thereafter:
(Centers for Disease Control and Prevention [CDC], 2019)
(CDC, 2019)
If the author is not named in the text, both the author and year are enclosed in parentheses:
“Recent studies have shown…” (Smith, 2020).
References List
At the end of the paper, a References page is included that provides the full bibliographic information for all sources cited. References are listed alphabetically by the first author’s last name or corporate name. Basic APA reference list entries include:
Journal article:
Author, A. A., Author, B. B., & Author, C. C. (Year). Article title. Journal Title, Volume(Issue), pages. https://doi.org/XX.XXXXX
Book:
Author, A. A. (Year). Title of work. Publisher.
Chapter in edited book:
Author, A. A., & Author, B. B. (Year). Title of chapter. In A. Editor & B. Editor (Eds.), Title of book (pages of chapter). Publisher.
Website:
Author, A. A. or Corporate Author. (Year, Month Date of Publication). Title of page. URL
Special Guidelines
There are additional guidelines for citing lesser known formats like personal communications, social media posts, datasets, images, etc. A key thing to note is that online sources require retrieval dates while print sources do not. Text citations with two or more works have the citations ordered alphabetically by the first authors’ last names. Sources that are part of a larger whole like articles in journals or books are cited with volume/issue and page numbers. APA provides guidance on ways to handle missing author names, dates, titles, etc.
Importance of Using Proper Citation Format
Adhering to the standardized APA citation format is important for several reasons. It allows readers to locate cited works and verify information used, which supports the credibility of a paper. It prevents plagiarism by giving credit to original authors. Consistent formatting makes it easier for readers to identify and differentiate multiple cited sources. Proper citation is also important for future literature reviews and meta-analyses that may build upon the published research findings. Overall, following guidelines like APA citation style is considered best practice for scientific publishing to promote ethics, transparency and reproducibility in research writing.