TY  - BOOK
AU  - Johnson,Harry Morton
AU  - Merton, Robert K.
TI  - Sociology: a systematic introduction 
AV  - HM51 .J57
PY  - 1960///]
CY  - New York
PB  - Harcourt, Brace
KW  - SOCIOLOGÍA
N1  - Includes bibliography
ER  -