TY  - BOOK
AU  - Hiller, E.T.
TI  - Social relations and structures: a study in principles of sociology. 
U1  - 302 
PY  - 1947///
CY  - New York
PB  - Harper and Brothers
KW  - SOCIOLOGIA
KW  - RELACIONES HUMANAS
KW  - GRUPOS SOCIALES
ER  -