APA (7th ed.) Citation

Keenan, E. L. (1987). Universal grammar: 15 essays. Croom Helm.

Chicago Style (17th ed.) Citation

Keenan, Edward L. Universal Grammar: 15 Essays. London [etc.]: Croom Helm, 1987.

MLA (9th ed.) Citation

Keenan, Edward L. Universal Grammar: 15 Essays. Croom Helm, 1987.

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