Rathore, O.S. . Handbook of extension education / by O.S. Rathore... et al . - 3rd rev ed / - Udaipur : Agrotech Publishing Academy , 2012 - 128p : ISBN: 978-81-8321-248-9 Subjects--Topical Terms: Extension Education- Handbook Dewey Class. No.: Tk / Q2;1