Blackburn, M. L. (1993). Are OLS estimates of the return to schooling biased downward?: Another look.
Chicago-Zitierstil (17. Ausg.)Blackburn, McKinley L. Are OLS Estimates of the Return to Schooling Biased Downward?: Another Look. Cambridge, Mass, 1993.
MLA-Zitierstil (9. Ausg.)Blackburn, McKinley L. Are OLS Estimates of the Return to Schooling Biased Downward?: Another Look. 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.