author: iowa state board of public instruction vocational education branch

... 01.04 183.118 Occupational Title Supervisor - supt . dairy plant wise noted unless otherwise noted 1970 1970 10 2 8 01.04 180.118 Field man - seed corn 17 2 12 01.04 529.782 01.04 525 ... Demand Projected Labor Supply ( 108 12 1.2 72 43.