TY - BOOK AU - Hoffman,V. AU - Christinck,A. AU - Lemma,M. TI - Handbook rural extension: examples and background material V. 2 SN - 9783823615729 U1 - 630.7 PY - 2009/// CY - Germany PB - Margraf Publishers KW - Agricultural extension N1 - Includes bibliographical references and index ER -