Sharma, H.S. . Ozone depletion and environmental impacts / by H.S. Sharma and T.I. Khan. - Jaipur : Pointer Publishers , 2004 - v-viii, 184p : ISBN: 81-7132-371-5 Subjects--Topical Terms: Biology- Environment- Ozone depletion Dewey Class. No.: G:55 / P4