Resources: land and air
Natarajan,Chitra
Resources: land and air - Mumbai: Homi bhabha centre for science education, 1997. - viii,97p. pbk. - Activity based foundation course on science, technology and society Curriculum book - 3 .
General science--land resources
General science--air resources
502.2(076) / NAT-R
Resources: land and air - Mumbai: Homi bhabha centre for science education, 1997. - viii,97p. pbk. - Activity based foundation course on science, technology and society Curriculum book - 3 .
General science--land resources
General science--air resources
502.2(076) / NAT-R