Citation, Documentation of Sources
Q. Concerning the author-date system of references, we use in-text citations and many times in-text citations end up in footnotes. Some authors will write “See Author1 2011, 123–34, and Author2 2000, and Author3 2004.” Others would write “See Author1 (2011, 123–34), and Author2 (2000), and Author3 (2004).” Which is correct?
A. Both styles are popular and conform to Chicago style guidelines. Please see CMOS 16, 15.24–30, for many examples. Semicolons work well in place of and.