APA (7th ed.) Citation

Elzawawy, A., & Kerr, D. (2013). Variation in the availability of cancer drug generics in the United States of America.

Chicago Style (17th ed.) Citation

Elzawawy, A., and D. Kerr. Variation in the Availability of Cancer Drug Generics in the United States of America. 2013.

MLA (9th ed.) Citation

Elzawawy, A., and D. Kerr. Variation in the Availability of Cancer Drug Generics in the United States of America. 2013.