APA (7th ed.) Citation

Crompton, D. W. T., & Joyner, S. M. (1980). Parasitic worms. Wykeham Publications.

Chicago Style (17th ed.) Citation

Crompton, D. W. T., and S. M. Joyner. Parasitic Worms. London: Wykeham Publications, 1980.

MLA (8th ed.) Citation

Crompton, D. W. T., and S. M. Joyner. Parasitic Worms. Wykeham Publications, 1980.