APA (7th ed.) Citation

Vernon, P. E. (1961). Intelligence and attainment tests. Philosophical Library.

Chicago Style (17th ed.) Citation

Vernon, Philip E. Intelligence and Attainment Tests. New York: Philosophical Library, 1961.

MLA (9th ed.) Citation

Vernon, Philip E. Intelligence and Attainment Tests. Philosophical Library, 1961.

Warning: These citations may not always be 100% accurate.