APA引文

(2015). Grammar explorer 3: Student book. Boston: MA National Geographic Learning Cengage Learning.

Trích dẫn kiểu Chicago

Grammar Explorer 3: Student Book. Boston: MA National Geographic Learning Cengage Learning, 2015.

MLA引文

Grammar Explorer 3: Student Book. Boston: MA National Geographic Learning Cengage Learning, 2015.

警告：这些引文格式不一定是100％准确.