APA (7th ed.) Citation

Pettit, G. R., Cragg, G. M., & Herald, C. L. Biosynthetic products for cancer chemotherapy. Elsevier.

Chicago Style (17th ed.) Citation

Pettit, George R., Gordon M. Cragg, and Cherry L. Herald. Biosynthetic Products for Cancer Chemotherapy. Amsterdam u.a: Elsevier.

MLA (9th ed.) Citation

Pettit, George R., et al. Biosynthetic Products for Cancer Chemotherapy. Elsevier.