Environmental studies
Purkayastha, Gautam
Environmental studies - New Delhi: Kalyani Publishers, 2019. - 372 p.
9789388778398
Environmental sciences
Human ecology
Environmental protection
628 PUR
Environmental studies - New Delhi: Kalyani Publishers, 2019. - 372 p.
9789388778398
Environmental sciences
Human ecology
Environmental protection
628 PUR