Answered By: Gabe Gossett
Last Updated: Jan 14, 2016     Views: 1772

According to the APA Manual you should “Use commas to separate authors, to separate surnames and initials, and to separate initials and suffixes”  (p. 184).  For example:

Esbensen, F. A., Winfree, L. T., Jr., He, N., & Taylor, J. T. (2001). Youth gangs and definitional issues: When is a gang a gang and why does it matter? In Esbensen, F. A., Tibbetts, S. G., & Gaines, L. K (Eds.), American youth gangs at the millennium. Long Grove, IL: Waveland Press.