एपीए उद्धरण

Rangarajan, M. Environmental Issues in India. Pearson.

शिकागो स्टाइल उद्धरण

Rangarajan, Mahesh. Environmental Issues in India. Noida: Pearson.

एमएलए उद्धरण

Rangarajan, Mahesh. Environmental Issues in India. Pearson.