00267nam a2200109Ia 4500008004100000041000800041082002200049100001500071245002800086260003500114300000800149211209s1978    xx            000 0 und d  aeng  a526.9 N78 HUS/NAG  aHUSAIN S K  aTEXT BOOK OF SURVEYING   bS CHAND AND COMPANY LTD.c1978  a670