APA (7e ed.) Bronvermelding

Não informado. Pakistan Journal of Health. Institute of Hygiene and Preventive Medicine.

Chicago (17e ed.) Bronvermelding

Não informado. Pakistan Journal of Health. Lahore, Paquistao: Institute of Hygiene and Preventive Medicine.

MLA (8e ed.) Bronvermelding

Não informado. Pakistan Journal of Health. Institute of Hygiene and Preventive Medicine.

Let op: Deze citaties zijn niet altijd 100% accuraat.