APA
Kushwaha J. S., . (2020). Fundamentals of environmental studies (Vol.1). Delhi: City Publications.
Chicago
Kushwaha Jimmy Singh, . 2020. Fundamentals of environmental studies (Vol.1). Delhi: City Publications.
Harvard
Kushwaha J. S., . (2020). Fundamentals of environmental studies (Vol.1). Delhi: City Publications.
MLA
Kushwaha Jimmy Singh, . Fundamentals of environmental studies (Vol.1). Delhi: City Publications. 2020.