00378nam a22001337a 4500008004100000040005500041080001400096100002300110245002200133260003500155300001000190650002000200653002400220230227b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aD 02b J4  aElliott, Charles A  aLibrary technique  aLondon: bGrafton & Co.,c1954  a240p.  aLibrary science  aInformation science