01058nam a22002537a 4500 081222t xxu||||| |||| 00| 0 eng d ENG-92249 80.00 8123407068 EN-75782 DBAD / PUB dpl English 630.7153 Venkatasubramanian, V. Technology communication and AV AIDS in extension education / by V. Venkatasubramanian New Century Book House Chennai 2001 41-B, SIDCO Industria Estate, Ambattur, Chennai 600098 xiii, 273p.: 24cm (pbk) b&w photos Includes bibliographical references, glossary and index Agricultural extension workers Education. Education Audio visual aids. Educational technology. ddc EN VEN 630.7153 20124 20124 0 0 ddc 0 1 NFIC DBAD DBAD 2009-01-01 DBAD / PUB 80.00 0 630.7153 VEN EN-75782 2008-12-22 00:00:00 1 80.00 2008-12-22 EN