Cita APA

Illingworth, R. (1980). Whooping-cough immunization.

Chicago Style Citation

Illingworth, R. Whooping-cough Immunization. 1980.

Cita MLA

Illingworth, R. Whooping-cough Immunization. 1980.

Atenció: Aquestes cites poden no estar 100% correctes.