APA-referens

Heppner, P. P. (2008). Research design in counseling. Belmont, CA: Thomson Brooks/Cole.

Chicago-stil citat

Heppner, P. Paul. Research Design in Counseling. Belmont, CA: Thomson Brooks/Cole, 2008.

MLA-referens

Heppner, P. Paul. Research Design in Counseling. Belmont, CA: Thomson Brooks/Cole, 2008.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.