APA (7th ed.) Citation

Toon, P., & Brown, H. (1989). Your heart and lungs. Harrap.

Chicago Style (17th ed.) Citation

Toon, Peter, and Hedley Brown. Your Heart and Lungs. London: Harrap, 1989.

MLA (9th ed.) Citation

Toon, Peter, and Hedley Brown. Your Heart and Lungs. Harrap, 1989.

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