APA (7th ed.) Citation

Tunnadine, D., Green, R., & Green, R. G. (1978). Unwanted pregnancy - accident or illness? Oxford University Press.

Chicago Style (17th ed.) Citation

Tunnadine, David, Roger Green, and Roger Graham Green. Unwanted Pregnancy - Accident or Illness? Oxford ; New York: Oxford University Press, 1978.

MLA (8th ed.) Citation

Tunnadine, David, et al. Unwanted Pregnancy - Accident or Illness? Oxford University Press, 1978.