Cita APA (7a ed.)
Harnack, R. V. (1964). Group discussion: Theory and technique. Appleton-Century-Crofts.
Cita Chicago Style (17a ed.)
Harnack, R. Victor. Group Discussion: Theory and Technique. New York: Appleton-Century-Crofts, 1964.
Cita MLA (9a ed.)
Harnack, R. Victor. Group Discussion: Theory and Technique. Appleton-Century-Crofts, 1964.
Precaución: Estas citas no son 100% exactas.