Citazione APA

Ahluwalia, V. K. Environmental studies: Basic concepts. The Energy and Resources Institute.

Stile di citazione Chicago

Ahluwalia, V K. Environmental Studies: Basic Concepts. New Delhi: The Energy and Resources Institute.

Citazione MLA

Ahluwalia, V K. Environmental Studies: Basic Concepts. The Energy and Resources Institute.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.