00396nam a2200121Ia 4500003000400000005001700004008004100021082002400062100001400086245011400100260005300214300000700267OSt20191018154834.0140316s9999    xx            000 0 und d  a636.01 NDRIbSIN/RA  aSingh,C B  aRapid rural appraisal of crop and dairy production systems in selected rural areas of Karnal district Haryana  aHaryanabNational dairy research institutec1994  a45