Cita APA (7a ed.)

Pertsch, C. (1936). A comparative study of the progess of subnormal pupils in the grades and in special classes. Columbia University.

Cita Chicago Style (17a ed.)

Pertsch, C. A Comparative Study of the Progess of Subnormal Pupils in the Grades and in Special Classes. New York: Columbia University, 1936.

Cita MLA (9a ed.)

Pertsch, C. A Comparative Study of the Progess of Subnormal Pupils in the Grades and in Special Classes. Columbia University, 1936.