TY  - BOOK
AU  - Arensberg, Conrad Maynadier,
AU  - Niehoff, Arthur H.,
TI  - Introducing social change: a manual for community development 
SN  - 0-202-01072-4
AV  - HM101 A74 1971
PY  - 1971///
CY  - New York
PB  - Aldine
KW  - Cambio social
ER  -