Gaya APA
Heckman, James J, Leamer, Edward E. (2007).
Handbook of econometrics ----Vol. 6A .
Boston:
North-Holland.
Gaya Chicago
Heckman, James J, Leamer, Edward E.
Handbook of econometrics ----Vol. 6A.
Boston:
North-Holland,
2007.
Text.
Gaya MLA
Heckman, James J, Leamer, Edward E.
Handbook of econometrics ----Vol. 6A.
Boston:
North-Holland,
2007.
Text.
Gaya Turabian
Heckman, James J, Leamer, Edward E.
Handbook of econometrics ----Vol. 6A.
Boston:
North-Holland,
2007.
Print.