TY  - BOOK
AU  - Dawan,Ashok
TI  - A textbook of environmental studies
SN  - 9788189005245(pbk.)
U1  - 333.7 22
PY  - 2012///
CY  - New Delhi
PB  - Saurabh Publishing House
KW  - Environmental sciences
KW  - Textbooks
KW  - Human ecology
N1  - Includes bibliographical references and index
ER  -