00490nam a22001697a 4500003000400000008004100004082001800045100003100063245010800094260004000202300000900242502001100251650002400262650001300286650001100299650001000310OSt240110b        |||||||| |||| 00| 0 eng d  a630.717bS66S  aSrivastava, Umesh Chandra.  aStudy of In-Service Training Needs Block Agricultural Officers of Bihar / cby Umesh Chandra Srivastava  a.- Sabour, Bhagalpurb: BAUc, 1977  a94p.  bM. Sc.  aExtension Education  aTraining  aThesis  aM.Sc.