TY  - BOOK
AU  - Evert M Rogers
TI  - Communication of Innovations
U1  - 302.234 
PY  - 1971///
CY  - New York
PB  - Free Press
N1  - Evert M Rogers: Communication of Innovations.  (2nd Ed)  New York.  Free Press, 1971.--(302.234ROG)
ER  -