TY  - BOOK
AU  - Ritzen, J.M.M.
TI  - Education, economic growth and income
SN  - 072043100
U1  - 339.2RIT. 
PY  - 1977///
CY  - New York.
PB  - North-Holland Publishing Company.
N1  - Includes appendix, bibliography and index
ER  -