Sometimes, you may be citing sources that share the same ideas or argue for the same viewpoint. In these cases, you may want to cite multiple works in a single in-text citation.
Remember, while this is possible, readers may find long strings of citations confusing.
Only include citations needed to support your immediate point.
When citing multiple works parenthetically, place the citations in alphabetical order, separating them with semicolons.
(Barton & Bryant, 2015; Calhoun et al., 2018; Goodwin, 2019)
Arrange two or more works by the same authors by year of publication. Place citations with no date first, followed by works with dates in chronological order.
(Coffey et al., n.d., 2017a, 2017b, 2019)
To highlight the work(s) most relevant to your point in a given sentence, place those citations first within parentheses in alphabetical order. Then insert a semicolon and a phrase, such as "see also," before the remaining citations, which should also be in alphabetical order.
(Velasquez & Estrada, 2017; see also Carillo, 2016; Macias, 2015; Serrano et al., 2015)
If multiple sources are cited within the narrative of a sentence, they can appear in any order.
Beltran (2014), Randall (2016, 2017), and Holden and Daughtery (2015) examined...
See pp. 263-264 of the manual for more about citing multiple works.