Cita APA (7a ed.)

Kirk, S. A. (1951). Educating the retarded child. Houghton Mifflin.

Cita Chicago Style (17a ed.)

Kirk, Samuel Alexander. Educating the Retarded Child. Boston: Houghton Mifflin, 1951.

Cita MLA (9a ed.)

Kirk, Samuel Alexander. Educating the Retarded Child. Houghton Mifflin, 1951.