Cita APA (7a ed.)

Selwyn, S., Lacey, R. W., & Bakhtiar, M. (1980). The beta-lactam antibiotics: Penicillins and cephalosporins in perspective. Hodder and Stoughton.

Cita Chicago Style (17a ed.)

Selwyn, Sydney, R. W. Lacey, y Mohammed Bakhtiar. The Beta-lactam Antibiotics: Penicillins and Cephalosporins in Perspective. London [etc.]: Hodder and Stoughton, 1980.

Cita MLA (9a ed.)

Selwyn, Sydney, et al. The Beta-lactam Antibiotics: Penicillins and Cephalosporins in Perspective. Hodder and Stoughton, 1980.