Cita APA (7a ed.)

May, J., Peto, R., Tinker, C., & Fletcher, C. (1973). A study of Hemophilus influenzae precipitins in the serum of working men in relation to smoking habits, bronchial infection, and airway obstruction.

Cita Chicago Style (17a ed.)

May, JR, R. Peto, C. Tinker, y C. Fletcher. A Study of Hemophilus Influenzae Precipitins in the Serum of Working Men in Relation to Smoking Habits, Bronchial Infection, and Airway Obstruction. 1973.

Cita MLA (9a ed.)

May, JR, et al. A Study of Hemophilus Influenzae Precipitins in the Serum of Working Men in Relation to Smoking Habits, Bronchial Infection, and Airway Obstruction. 1973.