Cita APA (7th ed.)

Blake, K. A. (1974). Teaching the retarded. Prentice-Hall.

Cita Chicago (17th ed.)

Blake, Kathryn A. Teaching the Retarded. Englewood Cliffs, N.J: Prentice-Hall, 1974.

Cita MLA (9th ed.)

Blake, Kathryn A. Teaching the Retarded. Prentice-Hall, 1974.