APA引文

(1983). Houghton Mifflin English: Resource book level 6. Houghton Mifflin Co..

Chicago Style (17th ed.) Citation

Houghton Mifflin English: Resource Book Level 6. Boston: Houghton Mifflin Co., 1983.

MLA引文

Houghton Mifflin English: Resource Book Level 6. Houghton Mifflin Co., 1983.