APA (7th ed.) Citation

Willocks, J., & Neilson, J. P. (1991). Obstetrics and gynecology (4th edition.). Churchill Livingstone.

Chicago Style (17th ed.) Citation

Willocks, James, and James P. Neilson. Obstetrics and Gynecology. 4th edition. Edinburgh: Churchill Livingstone, 1991.

MLA (8th ed.) Citation

Willocks, James, and James P. Neilson. Obstetrics and Gynecology. 4th edition. Churchill Livingstone, 1991.