TY - BOOK ED - National Agricultural Library TI - Thesaurus of agricultural terms: as used in the bibliography of agriculture, from data provided by the National Agricultural Library, U.S. Department of Agriculture SN - 0912700394 U1 - 025.4963 PY - 1976/// CY - Scottsdale, Ariz. PB - Oryx KW - Agricultura KW - Tesauros KW - Encabezamientos de materia ER -