TY  - BOOK
AU  -  Asthana,D.K
AU  - Asthana, Meera.
TI  - Textbook of environmental studies: for undergraduate students as per UGC syllabus 
SN  -  9788121927642
U1  - 333.707 
PY  - 2006/// [Reprinted 2010]
CY  - New Delhi
PB  - S. Chand
KW  - Environmental sciences
KW  - Sustainable development
KW  - Natural resources
N1  - Includes bibliographical references and index
ER  -