TY  - GEN
AU  - 
AU  - Penders, J. M. A., ed.
TI  - Methods and program planning in rural extension, issued by the International Agricultural Study Centre, Wageningen, 1956
PY  - 1956///
CY  - Wageningen
PB  - H. Veenman & Zonen
KW  - Agricultural Extension
ER  -