APA (7th ed.) Citation

COFER, C. N., FITZGERALD, H. E., & HERMANSON, R. H. (1975). Programed learning aid for human memory and forgetting. Richard D. Irwin.

Chicago Style (17th ed.) Citation

COFER, Charles N., Hiram E. FITZGERALD, and Roger H. HERMANSON. Programed Learning Aid for Human Memory and Forgetting. Homewood: Richard D. Irwin, 1975.

MLA (9th ed.) Citation

COFER, Charles N., et al. Programed Learning Aid for Human Memory and Forgetting. Richard D. Irwin, 1975.