00380nam a22001337a 4500008004100000040005500041080001600096100002500112245002100137260003700158300001100195650002100206653001900227230303b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aD 021.6bK6  aMortimore, Arthur D   aBranch libraries  aLondon: bA Grafton Book, c1966  a149p.   aLibrary science   aStock control