Cita APA (7th ed.)

Pritam, L. (2007). Environmental Health and Hygiene. APH.

Cita Chicago (17th ed.)

Pritam, Lily. Environmental Health and Hygiene. New Delhi: APH, 2007.

Cita MLA (9th ed.)

Pritam, Lily. Environmental Health and Hygiene. APH, 2007.