APA-referens

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

Chicago-stil citat

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

MLA-referens

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.