TY  - BOOK
AU  - Walker, Denise C
TI  - Mass notification and crisis communications : planning, preparedness, and systems / Denise C. Walker
SN  - 9781439874387
U1  - 384.5 WAL 2012 
PY  - 2012///
CY  - Boca Raton, FL : 
PB  - CRC Press
KW  - Emergency management
KW  - Emergency communication systems
KW  - Risk communication
KW  - Crisis management
N1  - Includes bibliographical references and index
ER  -