Cita APA (7a ed.)

Stevens, M. (1971). Observing children who are severely subnormal: : an approach to their education. Edward Arnold.

Cita Chicago Style (17a ed.)

Stevens, Mildred. Observing Children Who Are Severely Subnormal: : An Approach to Their Education. London: Edward Arnold, 1971.

Cita MLA (9a ed.)

Stevens, Mildred. Observing Children Who Are Severely Subnormal: : An Approach to Their Education. Edward Arnold, 1971.