APA-viite (7. p.)

Ryan, M. P., Hastorf, A. H., & Cofer, C. N. (1975). Programmed learning aid for person perception. Learning Systems Company.

Chicago-viite (17. p.)

Ryan, Michael P., Albert H. Hastorf, ja Charles N. Cofer. Programmed Learning Aid for Person Perception. Homewod, Illinois: Learning Systems Company, 1975.

MLA-viite (9. p.)

Ryan, Michael P., et al. Programmed Learning Aid for Person Perception. Learning Systems Company, 1975.