APA (7th ed.) Citation

Flower & Berman. (1989). Build your vocabulary. Language Teaching Publications.

Chicago Style (17th ed.) Citation

Flower and Berman. Build Your Vocabulary. England: Language Teaching Publications, 1989.

MLA (8th ed.) Citation

Flower and Berman. Build Your Vocabulary. Language Teaching Publications, 1989.

Warning: These citations may not always be 100% accurate.