Cita APA

McDonald, A. D., Armstrong, B. G., & Sloan, M. (1992). Cigarette, alcohol, and coffee consumption and prematurity.

Citación estilo Chicago

McDonald, A D., B G. Armstrong, y M. Sloan. Cigarette, Alcohol, and Coffee Consumption and Prematurity. 1992.

Cita MLA

McDonald, A D., B G. Armstrong, y M. Sloan. Cigarette, Alcohol, and Coffee Consumption and Prematurity. 1992.