Cita APA (7th ed.)
Kuhlen, R. G., & Thompson, G. G. (1970). Psychological studies of human development (3rd.ed.). Appleton-century-crofts.
Cita Chicago (17th ed.)
Kuhlen, Raymond G., i George G. Thompson. Psychological Studies of Human Development. 3rd.ed. New York: Appleton-century-crofts, 1970.
Cita MLA (9th ed.)
Kuhlen, Raymond G., i George G. Thompson. Psychological Studies of Human Development. 3rd.ed. Appleton-century-crofts, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.