01030cas a2200289 a 450000100090000000300080000900500170001700800410003401000590007502000150013403500240014904000440017304200080021705000180022508200120024324500660025525000120032126001040033330000190043750000360045651500360049252500400052865000350056870000340060371000250063778500780066212728296BD-DhUL20170608081723.0760620d1973    enk x    b    0    0eng c  a  2002201819z   59016733 z   66071608 z   73174024   a0853653267  a(OCoLC)ocm02253657   aMnMULSbengcMnMULSdOCoLCdIUdBD-DhUL  apcc00aZ1035.1b.W33  a011 WAG00aGuide to reference material :bVol. 1. Science & technology /  a3rd ed.  aLondon :bLibrary Association ;aNew York, N.Y. :bDistributed in the U.S.A. by R.R. Bowker,c1973.  a3 v. ;c26 cm.  aEditor: 1959-1977 A.J. Walford.  aIssued in 3 v., 2nd ed.-3rd ed.  aVol. issued in 1959 has supplement. 0aReference booksvBibliography.1 aWalford, A. J.q(Albert John)2 aLibrary Association.00tWalford's guide to reference materialw(DLC)  2002201820w(OCoLC)20336077