If the volume has its own title, include the volume number and the title after the main title in italics (see Braddock & Milner example).
If the volume does not have its own title, include the volume number in parenthesis without italics (see Fiske et al. example).
(Braddock & Milner, 2017)
Fiske et al. (2010)
Braddock, J. H., & Milner, A. N. (Eds.). (2017). Women in sports: breaking barriers, facing obstacles: Vol. 1.
Sportswomen and teams. Praeger.
Fiske, S. T., Gilbert, D. T., & Lindzey, G. (2010). Handbook of social psychology (5th ed., Vol. 1). John Wiley &
Author/Editor Surname, Initial(s)., & Author/Editor surname, Initial(s). (Eds.). (Year). Book title: Subtitle (including volume
information if this is in the title or in brackets if the volume does not have its own title). Publisher. DOI (if there is one)