SINGH B B Question bank on agricultural extension SINGH B B; KARTHIKEYAN C; AGA F A - New Delhi Daya Publishing House 2017 - viii,211p cm. - Routledge Advances in Sociology . ISBN: 9789351247937 225.00 Source: IN3940/17-18, 14/03/2018, P.K.Books General Book Subjects--Topical Terms: Geography Dewey Class. No.: X9(J).2, Q7