APA (7th ed.) Citation

Duncan, D. J., Hermanson, R. H., & Hollander, S. C. . [. .. (1979). Programmed learning aid for retailing: Modern concepts and practices (3rd ed.). Learning Systems.

Chicago Style (17th ed.) Citation

Duncan, Delbert J., Roger H. Hermanson, and Stanley C. [] Hollander. Programmed Learning Aid for Retailing: Modern Concepts and Practices. 3rd ed. Homewood, Ill.: Learning Systems, 1979.

MLA (9th ed.) Citation

Duncan, Delbert J., et al. Programmed Learning Aid for Retailing: Modern Concepts and Practices. 3rd ed. Learning Systems, 1979.