APA

Hoper Claus-Jurgen, Kutzelb Ulrike, . (1975). Awareness games personal growth through group interaction. New York: St. Martins Press.

Chicago

Hoper Claus-Jurgen, Kutzelb Ulrike, . 1975. Awareness games personal growth through group interaction. New York: St. Martins Press.

Harvard

Hoper Claus-Jurgen, Kutzelb Ulrike, . (1975). Awareness games personal growth through group interaction. New York: St. Martins Press.

MLA

Hoper Claus-Jurgen, Kutzelb Ulrike, . Awareness games personal growth through group interaction. New York: St. Martins Press. 1975.