Sethi, Manmohan Singh.
Understanding our environment / Manmohan Singh Sethi and Inderjeet Kaur Sethi. - New Delhi : Commonwealth Publishers , 1991. - xv,440p. : ill.,figs. ; 23cm .
Includes references and index
8171691129 NULL
ENVIRONMENT
333.7 / SET/U
Understanding our environment / Manmohan Singh Sethi and Inderjeet Kaur Sethi. - New Delhi : Commonwealth Publishers , 1991. - xv,440p. : ill.,figs. ; 23cm .
Includes references and index
8171691129 NULL
ENVIRONMENT
333.7 / SET/U
