APA (7th ed.) Citation

Robinson, E., Anderson, B., Allen, R. V., Hartley, L., & Yakel, L. (1990). It's better together. DLM Teaching resources.

Chicago Style (17th ed.) Citation

Robinson, Elva, Bill Anderson, Roach Van Allen, Linda Hartley, and Linda Yakel. It's Better Together. Allen: DLM Teaching resources, 1990.

MLA (9th ed.) Citation

Robinson, Elva, et al. It's Better Together. DLM Teaching resources, 1990.