APA (7th ed.) Citation

PERRETT. (1999). Wordbird's word book. Longman.

Chicago Style (17th ed.) Citation

PERRETT. Wordbird's Word Book. Harlow: Longman, 1999.

MLA (9th ed.) Citation

PERRETT. Wordbird's Word Book. Longman, 1999.

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