1.
, . Progress in group and family therapy. New York, London: Brunner/Mazel; 1972.
et . Progress in group and family therapy. New York, London : Brunner/Mazel, 15 juin 1972
Sager Clifford J. & Kaplan Helen Singer. (1972). Progress in group and family therapy. Brunner/Mazel.
Style de citation MLA (8e éd.)Sager Clifford J. et Kaplan Helen Singer. Progress in Group and Family Therapy. Brunner/Mazel, 1972.
Attention : ces citations peuvent ne pas être correctes à 100%.