Q. How do I cite a coursepack in APA style?
Citing Coursepacks in APA Style
You should 'unpack the coursepack' and cite the pieces individually- ie previously published works, original unpublished material, etc are treated as they would normally be in APA.
This article explains it well: http://blog.apastyle.org/apastyle/2012/09/how-to-cite-course-packs.html