Cita APA

McGavock, H., Johnston, G. D., & Webb, C. H. (1994). Market penetration of new drugs.

Chicago Style Citation

McGavock, H., G D. Johnston, i C H. Webb. Market Penetration of New Drugs. 1994.

Cita MLA

McGavock, H., G D. Johnston, i C H. Webb. Market Penetration of New Drugs. 1994.