APA (7th ed.) Citation

Inglis, J., & Lewis, R. (1993). Clear thinking / John Inglis and Roger Lewis. Collins Educational and National Extension College Trust Ltd.

Chicago Style (17th ed.) Citation

Inglis, John, and Roger Lewis. Clear Thinking / John Inglis and Roger Lewis. London: Collins Educational and National Extension College Trust Ltd, 1993.

MLA (9th ed.) Citation

Inglis, John, and Roger Lewis. Clear Thinking / John Inglis and Roger Lewis. Collins Educational and National Extension College Trust Ltd, 1993.

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