Proceedings of the pennsylvania conference on agricultural waste management, november 17-18,1970, harrisburg, pennsylvania 

 - 112 páginas 
<br/><br/> Preparada en cooperacion con la pennsylvania state university. college of agriculture 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Residuos agrícolas--Congresos<br/>Pennsylvania State University. College of Agriculture 
<br/><br/><label>LC Class. No.: </label>TD930  / P44 1970