Style de citation APA (7e éd.)

Cofer, C. N. (1972). Programmed learning aid for introduction to psychology. Learning systems co..

Style de citation Chicago (17e éd.)

Cofer, Charles N. Programmed Learning Aid for Introduction to Psychology. Illinois: Learning systems co., 1972.

Style de citation MLA (9e éd.)

Cofer, Charles N. Programmed Learning Aid for Introduction to Psychology. Learning systems co., 1972.