Παραπομπή σε μορφή APA (7η εκδ.)

Virkler, H. A. (1991). Speaking your mind without stepping on toes: Guidelines for group leaders included. Victor.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Virkler, Henry A. Speaking Your Mind Without Stepping on Toes: Guidelines for Group Leaders Included. New York: Victor, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

Virkler, Henry A. Speaking Your Mind Without Stepping on Toes: Guidelines for Group Leaders Included. Victor, 1991.