APA (7th ed.) Citation

Dengate, B., & Gill, K. (1989). Maths for teenagers. Longman Cheshire.

Chicago Style (17th ed.) Citation

Dengate, Bob, and Ken Gill. Maths for Teenagers. Australia: Longman Cheshire, 1989.

MLA (9th ed.) Citation

Dengate, Bob, and Ken Gill. Maths for Teenagers. Longman Cheshire, 1989.