on-farm conservation of crop diversity text Rome, Italy Ottawa, Canada Boca Raton, FL International Plant Genetic Resources Institute International Development Research Centre Lewis Publishers c2000 monographic 288 p. ill., maps 24 cm. edited by Stephen B. Brush. Includes bibliographical references. Crops Germplasm resources Germplasm resources, Plant 0889368848 (International Development Research Centre) 1566704057 (Lewis Publishers : alk. paper) 20251012174647.0 0000023489