TY  - BOOK
AU  - Perrett,Heli E.
TI  - Monitoring and evaluation of communication support activities in the low-cost sanitaion projects / 
U1  - MISR 302.2 PER 
PY  - 1984///
CY  - Washington, D.C. : 
PB  - United Nations, 
KW  - Communication in social action
KW  - Evaluation
KW  - Communication in social work
N1  -  Includes bibliographical references
ER  -