APA-referens (7:e uppl.)

Wrenn, C. G. (1973). The world of the contemporary counselor. Houghton Mifflin.

Chicago-referens (17:e uppl.)

Wrenn, Charles Gilbert. The World of the Contemporary Counselor. Boston: Houghton Mifflin, 1973.

MLA-referens (9:e uppl.)

Wrenn, Charles Gilbert. The World of the Contemporary Counselor. Houghton Mifflin, 1973.