APA (7th ed.) Citation

Barr, M. W., & Maloney, E. F. (1920). Types of mental defectives. P. Blakiston's Son and Company.

Chicago Style (17th ed.) Citation

Barr, Martin W., and Earle Francis Maloney. Types of Mental Defectives. Philadelphia: P. Blakiston's Son and Company, 1920.

MLA (9th ed.) Citation

Barr, Martin W., and Earle Francis Maloney. Types of Mental Defectives. P. Blakiston's Son and Company, 1920.

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