Wellard, Kate The state voluntary agencies and agricultural technology in marginal areas / Kate Wellard & John Farrington - London : ODI , 1990 - 25p. : ill. ; 15 cm. - AAU. Research and Extension Network Paper No. 15 . Includes bibliographical references and index. ISBN: 09511873 Subjects--Topical Terms: Voluntary organizationsagricultural engineering Gov. Doc. Class. No.: GB ODI AAU NP-15