00519nam a22001457a 4500008004100000040005500041080002100096245007500117260007200192300001400264500003500278650001700313653002200330700002100352240701b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aR 015 (410): 017  aBritish national bibliography: bCumulated subject catalogue 1955-1959  aLondon: bCouncil of the British National Bibliopgraphy Ltd, c1963  ax, 1124p.  aVol. 1: Class 000 to class 400  aBibliography  aSubject catalogue  aWells, A J (Ed.)