Dyfyniad APA

Parminder Singh. (2014). Environmental problems: A global health hazards. Cyber tech publications.

Dyfyniad Arddull Chicago

Parminder Singh. Environmental Problems: A Global Health Hazards. New Delhi: Cyber tech publications, 2014.

Dyfyniad MLA

Parminder Singh. Environmental Problems: A Global Health Hazards. Cyber tech publications, 2014.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.