Proceedings 20th national research symposium : mula sakahan patungong hapagkainan : bringing the benefits of agricultural R&D closer to the people / - 224 pages : color illustrations, color maps ; 29 cm. Includes bibliographical references English eng ISSN: 1655-7549 Subjects--Topical Terms: Agriculture LC Class. No.: S1 790.3 / .B9523 2008