Cita APA

Barker, D. (1973). Practical epidemiology. Longman.

Chicago Edition Citation

Barker, Djp. Practical Epidemiology. Longman, 1973.

Cita MLA

Barker, Djp. Practical Epidemiology. Longman, 1973.

Atenció: Aquestes cites poden no estar 100% correctes.