Ephross, P. H., & Vassil, T. V. (2005). Groups that work: Structure and process (2nd ed.). New York: Columbia University Press.
Style de citation ChicagoEphross, Paul H., et Thomas V. Vassil. Groups That Work: Structure and Process. 2nd ed. New York: Columbia University Press, 2005.
Style de citation MLAEphross, Paul H., et Thomas V. Vassil. Groups That Work: Structure and Process. 2nd ed. New York: Columbia University Press, 2005.
Attention : ces citations peuvent ne pas être correctes à 100%.