APA引文

Mackey, D., Jenkins, R., & Johnson, S. (2015). Grammar explorer. Boston: National Geographic Learning, Cengage Learning.

Trích dẫn kiểu Chicago

Mackey, Daphne, Rob Jenkins, và Staci Johnson. Grammar Explorer. Boston: National Geographic Learning, Cengage Learning, 2015.

MLA引文

Mackey, Daphne, Rob Jenkins, và Staci Johnson. Grammar Explorer. Boston: National Geographic Learning, Cengage Learning, 2015.

警告：這些引文格式不一定是100％准確.