APA
Singh D. J. S., Machey D. A. & Hazarika A. (2021). Textbook of Environmental Studies. Dibrugarh: Banalata.
Chicago
Singh Dr Jay Shankar, Machey Dr Ashwini and Hazarika Arnav. 2021. Textbook of Environmental Studies. Dibrugarh: Banalata.
Harvard
Singh D. J. S., Machey D. A. and Hazarika A. (2021). Textbook of Environmental Studies. Dibrugarh: Banalata.
MLA
Singh Dr Jay Shankar, Machey Dr Ashwini and Hazarika Arnav. Textbook of Environmental Studies. Dibrugarh: Banalata. 2021.
