APA (7th ed.) Citation

Walker, K. F., & Thornton, J. (2018). Delivery at term: When, how and why. Elsevier.

Chicago Style (17th ed.) Citation

Walker, Kate F., and Jim Thornton. Delivery at Term: When, How and Why. Elsevier, 2018.

MLA (9th ed.) Citation

Walker, Kate F., and Jim Thornton. Delivery at Term: When, How and Why. Elsevier, 2018.

Warning: These citations may not always be 100% accurate.