TY  - BOOK
AU  - Sharma DD
AU  - Chand Mai
TI  - A text book on introductory extension education / : DD Sharma
U1  - 338.75 SHA 
PY  - 2005///
CY  - India
PB  - Parmar University of Horticulture and forestry
N1  - Includes index and bibliographical references
ER  -