00783cam a2200253 a 4500 3052304 BD-DhUL 20170604140425.0 960510s1950 dcu f001 0 eng 57060002 DLC DLC DLC BD-DhUL 025.4 LIC Library of Congress. Library of Congress classification : Class Q : Science / Science 5th ed. Washington, D.C. : Library of Congress, Cataloging Distribution Service, 1950. vi, 215 p. ; 26 cm. Includes index. Classification, Library of Congress. Classification Books Science. 7 cbc orignew 1 ocip 19 y-gencatlg ddc REF 203921 203921 0 0 ddc 0 025_400000000000000_LIC 1 REF 342905 DUL DUL REF 2017-06-04 Gift 025.4 LIC A7481 2017-06-04 2017-06-04 REF