APA引文

DeFilippo, J., & Mackey, D. (1987). Grammar plus: A basic skills course for english language learners. Addison-Wesley Publ.Comp.

Chicago Style (17th ed.) Citation

DeFilippo, Judy, and Daphne Mackey. Grammar Plus: A Basic Skills Course for English Language Learners. Addison-Wesley Publ.Comp, 1987.

MLA引文

DeFilippo, Judy, and Daphne Mackey. Grammar Plus: A Basic Skills Course for English Language Learners. Addison-Wesley Publ.Comp, 1987.

警告：这些引文格式不一定是100％准确.