Environmental problems : protection and control /

v. 1. Environmental concept --v. 2. Environmental problems, protection and control

Xehetasun bibliografikoak
Egile Nagusiak: Kumar, Arun, Institute of Sustainable Development (Lucknow)
Formatua:
Hizkuntza:eng
Argitaratua: New Delhi : Anmol Publications, 1999
Gaiak: