TY  - BOOK
AU  - B. Balakrishn
AU  -  K.T. Ramachandra  Department of Agricultural Extension Education
TI  - Relative effectiveness of two modes of lecture presentationon gain in cognition oand retention- A field experiment
U1  - 630 
PY  - 1993///
CY  - Bangalore
PB  - University of Agricultural Sciences, Bangalore
ER  -