00334nam a22000977a 4500008004100000040005500041080002300096245006100119250001300180260004300193230518b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aR 07(058)(540)bL2  aPress and advertisers yearbook 1972c/ INFA Publications  a10th ed.  aNew Delhi: bINFA Publications, c1972