TY  - BOOK
AU  - Duncan,Otis Dudley
TI  - Socioeconomic background and achievement
SN  - 0128237503
AV  - HN90.S6 .D85 1972 D85 1972
U1  - 301.44/044/0973 
PY  - 1972///
CY  - New York
PB  - Seminar Press
ER  -