TY  - BOOK
AU  - Walker,Denise C.
TI  - Mass notification and crisis communications: planning, preparedness, and systems 
SN  - 1439874387
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  -