Gaya APA

Hanushek, E, A., Welch, F. (2006). Handbook of the economics of education vol. 1 (vol. 1). North Holland: Elseiver.

Gaya MLA

Hanushek, Eric, A.., Welch, Finis. "Handbook of the economics of education vol. 1". vol. 1 North Holland: Elseiver, 2006. MP.