APA-viite (7. p.)

Harnack, R. V. (1964). Group discussion: Theory and technique. Appleton-Century-Crofts.

Chicago-viite (17. p.)

Harnack, R. Victor. Group Discussion: Theory and Technique. New York: Appleton-Century-Crofts, 1964.

MLA-viite (9. p.)

Harnack, R. Victor. Group Discussion: Theory and Technique. Appleton-Century-Crofts, 1964.