00365nam a2200109Ia 450000500170000000800410001705000140005810000260007224500860009826000440018465000270022820251229124402.0251229s9999    xx            000 0 und d  aS 531 .D7  aDrawbaugh, Charles C. 0aAgricultural educationb approaches to learning and teachingcCharles C Drawbaugh  aOhiob Charles E Merrill Pubc Co. 1971  aAgricultural Education