APA (7th ed.) Citation

O'Riordan, F. L. H., Malan, P. G., & Gould, R. P. (1982). Essentials of endocrinology. P G publishing pvt ltd.

Chicago Style (17th ed.) Citation

O'Riordan, F. L. H., P. G. Malan, and R. P. Gould. Essentials of Endocrinology. Oxford: P G publishing pvt ltd, 1982.

MLA (9th ed.) Citation

O'Riordan, F. L. H., et al. Essentials of Endocrinology. P G publishing pvt ltd, 1982.