01469nam 2200397 450 991064336420332120230213223945.00-89118-282-9(CKB)3810000000041864(WaSeSS)IndRDA00111454(EXLCZ)99381000000004186420190319d1969 uy 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierInternational agronomy training & education papers presented at the annual meeting of the American Society of Agronomy in New Orleans, November 1968 /editors, J. Ritchie Cowan, L. S. RobertsonMadison, Wisconsin :American Society of Agronomy :Crop Science Society of America :Soil Science Society of America,1969.1 online resource (viii, 108 pages)ASA Special Publication ;Number 150-89118-042-7 ASA special publication ;Number 15.Agricultural educationCongressesAgronomyStudy and teachingCongressesAgricultural educationAgronomyStudy and teaching630.71Cowan J. Ritchie1916-Robertson Lynn Shelby1916-WaSeSSWaSeSSBOOK9910643364203321International agronomy training & education3007072UNINA