Dudeja Suman Science and life - Hyderabad Universities Press India 2013 - 158p. cm. - FYUP FC SL . ISBN: 9788173719011 (pbk) 112 Standard No.: 6969 Source: 23/2013-14, 14/08/2013, Pioneer Books Distributors Textual Subjects--Topical Terms: SCIENCE Dewey Class. No.: A0aY, Q3