TY - BOOK AU - Stoskopf,Neal C. TI - Understanding Crop Production/ (Acc: 350) SN - 0835980278 U1 - 631.5 STO 19 PY - 1981/// CY - Reston, Va. PB - Reston Pub. Co. KW - Plants, Cultivated KW - Crop production in agriculture ER -