APA引文

Summers], [. D. (2003). Longman. Pearson Education.

Chicago Style (17th ed.) Citation

Summers], [Dir. Della. Longman. Pearson Education, 2003.

MLA引文

Summers], [Dir. Della. Longman. Pearson Education, 2003.

警告：这些引文格式不一定是100％准确.