APA (7th ed.) Citation

Riddle, J. T. E., & Lee, M. (1989). The circulatory system and the respiratory system. Churchill Livingstone.

Chicago Style (17th ed.) Citation

Riddle, Janet T. E., and May Lee. The Circulatory System and the Respiratory System. Edinburgh, Scotland: Churchill Livingstone, 1989.

MLA (9th ed.) Citation

Riddle, Janet T. E., and May Lee. The Circulatory System and the Respiratory System. Churchill Livingstone, 1989.