APA (7th ed.) Citation

Christensen, J., Wingate, D. L., & Gregory, R. A. (1983). A guide to gastrointestinal motility. John Wright & Sons.

Chicago Style (17th ed.) Citation

Christensen, James, David L. Wingate, and R. A. Gregory. A Guide to Gastrointestinal Motility. Bristol: John Wright & Sons, 1983.

MLA (8th ed.) Citation

Christensen, James, et al. A Guide to Gastrointestinal Motility. John Wright & Sons, 1983.