00712nam a22002297a 4500 BD-DhUL 20150114110122.0 150114s1998 ii a|||| |||| 001 0 eng d 8170237637 BD-DhUL BD-DhUL 621.55 RAV Rao, V. V. Vacum science and technology / V. V. Rao, T.B. Ghosh and K. L. Chopra. New Delhi : Allied Publishers, c1998. xi, 202 p. : ill. ; 24 cm. Rs. 195.00 Includes bibliographical references and index. Vacuum science and technology. joint author. Ghosh, T. B. joint author. Chopra, K. L. ddc BK 30731 30731 0 0 ddc 0 621_550000000000000_RAV 0 NFIC 58126 DUSL DUSL GEN 2007-01-03 purchased 621.55 RAV 423819 2015-01-14 2 2015-01-14 BK 0 0 ddc 0 621_550000000000000_RAV 0 NFIC 58134 DUSL DUSL GEN 2008-01-03 purchased 621.55 RAV 423818 2015-01-14 1 2015-01-14 BK