Xavier, d. L., & Per, J. (2014). Testing for the Unconfoundedness Assumption Using an Instrumental Assumption. De Gruyter.
Lua i Stíl Chicago (17ú heag.)Xavier, de Luna, agus Johansson Per. Testing for the Unconfoundedness Assumption Using an Instrumental Assumption. De Gruyter, 2014.
Lua MLA (9ú heag.)Xavier, de Luna, agus Johansson Per. Testing for the Unconfoundedness Assumption Using an Instrumental Assumption. De Gruyter, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.