TY  - BOOK
AU  - Ludwig, F. Harvey
TI  - Manual of Environmental Technology in Developing countries volume II
SN  - 978-81-7003-134-5
U1  - 363.7282 LUD 
CY  - New Delhi
PB  -  South Asian Publishers pvt ltd 1991.
KW  - Environmental Problems-Recycling
ER  -