TY  - BOOK
AU  - Marcos, Anastasios C.,
AU  - Draper, Thomas
TI  - Family variables: conceptualization, measurement and use 
SN  - 0803931115
AV  - HQ728 F35
PY  - 1990///
CY  - Newbury park
PB  - Sage
KW  - Familias
KW  - Investigación
KW  - Metodología
N1  - "published in cooperation with the national council on family relations"
ER  -