00319nam a2200085Ia 4500008004100000040003800041100005000079245003700129260006700166211215s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aNational Counsil of Applied Economic Research 0aTechno-economic survey of Punjab  bNational Counsil of Applied Economic ResearchaNew Delhic1962