APA (7th ed.) Citation

Gregory, R. A. (1982). Regulatory peptides of gut and brain. Churchill Livingstone.

Chicago Style (17th ed.) Citation

Gregory, Richard A. Regulatory Peptides of Gut and Brain. Churchill Livingstone, 1982.

MLA (9th ed.) Citation

Gregory, Richard A. Regulatory Peptides of Gut and Brain. Churchill Livingstone, 1982.

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