Cita APA (7th ed.)

William D. Perreault, J., & McCarthy, E. J. (1971). Learning Aid for use with.

Cita Chicago (17th ed.)

William D. Perreault, Jr, i E. Jerome McCarthy. Learning Aid for Use with. 1971.

Cita MLA (9th ed.)

William D. Perreault, Jr, i E. Jerome McCarthy. Learning Aid for Use with. 1971.