APA (7th ed.) Citation

Angrist, J. D., & Krueger, A. B. (1994). Split sample instrumental variables.

Chicago Style (17th ed.) Citation

Angrist, Joshua D., and Alan B. Krueger. Split Sample Instrumental Variables. Cambridge, Mass, 1994.

MLA (9th ed.) Citation

Angrist, Joshua D., and Alan B. Krueger. Split Sample Instrumental Variables. 1994.