APA (7. basım) Alıntı

Leland, H., & Smith, D. E. (1974). Mental retardation: Present and future perspective. C. A. Jones.

Chicago Style (17. basım) Atıf

Leland, Henry, ve Daniel E. Smith. Mental Retardation: Present and Future Perspective. Worthington, Ohio: C. A. Jones, 1974.

MLA (9th ed.) Atıf

Leland, Henry, ve Daniel E. Smith. Mental Retardation: Present and Future Perspective. C. A. Jones, 1974.