Professional workers in state agricultural experiment stations and other cooperative state institutions   
/ United state department of agriculture  
 - Washington:   United State Department of Agriculture,   1975 
 - iii, 206p. 
 - Agriculture handbook no. 305 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Subjects--Index Terms: </label>Ecology Forestry 
<br/><br/><label>Universal Decimal Class. No.: </label>63.057  / L5