APA引文

Cryer, D., Bourland, B., & Harms, T. (1988). Active learning for twos. Addison-Wesley Publishing Company.

芝加哥风格引文

Cryer, Debby, Beth Bourland, 与 Thelma Harms. Active Learning for Twos. Menlo Park, California: Addison-Wesley Publishing Company, 1988.

MLA引文

Cryer, Debby, et al. Active Learning for Twos. Addison-Wesley Publishing Company, 1988.