Cita APA

Vaughan, J. P., & Morrow, R. H. (1989). Manual of epidemology for district health management. World Health Organisation.

Citación estilo Chicago

Vaughan, J P., y R H. Morrow. Manual of Epidemology for District Health Management. Geneva: World Health Organisation, 1989.

Cita MLA

Vaughan, J P., y R H. Morrow. Manual of Epidemology for District Health Management. World Health Organisation, 1989.