APA (7th ed.) Citation

Crome, L., & Stern, J. (1972). Pathology of mental retardation (2. ed.). Churchill Livingstone.

Chicago Style (17th ed.) Citation

Crome, Len, and Jan Stern. Pathology of Mental Retardation. 2. ed. Edinburgh [u.a.]: Churchill Livingstone, 1972.

MLA (9th ed.) Citation

Crome, Len, and Jan Stern. Pathology of Mental Retardation. 2. ed. Churchill Livingstone, 1972.