APA-Zitierstil (7. Ausg.)

Liungman, K. G. (1975). What is iq?: Intelligence, heredity and environment. Cremonesi.

Chicago-Zitierstil (17. Ausg.)

Liungman, Karl G. What Is Iq?: Intelligence, Heredity and Environment. London: Cremonesi, 1975.

MLA-Zitierstil (9. Ausg.)

Liungman, Karl G. What Is Iq?: Intelligence, Heredity and Environment. Cremonesi, 1975.