an introduction to low-external-input and sustainable agriculture Reijntjes Coen Coen Reijntjes creator Haverkort, Bertus Waters-Bayer, Ann xxu London 1992 Macmillan eng xxii, : 251 p. ; 25 cm. Coen Reijntjes, Bertus Haverkort and Ann Waters-Bayer Includes bibliographical references and index Agriculture Farming 630 REI 0333570111 090715 20250617114445.0 002567