APA Citatie

Vernon,Philip E. (1979). Intelligence: Heredity and environment. W H Freeman and Company.

Chicago Style citaat

Vernon,Philip E. Intelligence: Heredity and Environment. San Francisco: W H Freeman and Company, 1979.

MLA citatie

Vernon,Philip E. Intelligence: Heredity and Environment. W H Freeman and Company, 1979.

Let op: Deze citaties zijn niet altijd 100% accuraat.