Cita APA

Petrik, M. (1956). The training of sanitary engineers. Geneva: World Health Organization.

Citación estilo Chicago

Petrik, Milivoj. The Training of Sanitary Engineers. Geneva: World Health Organization, 1956.

Cita MLA

Petrik, Milivoj. The Training of Sanitary Engineers. Geneva: World Health Organization, 1956.

Precaución: Estas citas no son 100% exactas.