Xavier, d. L., & Per, J. (2014). Testing for the Unconfoundedness Assumption Using an Instrumental Assumption. De Gruyter.
芝加哥风格引文Xavier, de Luna, 与 Johansson Per. Testing for the Unconfoundedness Assumption Using an Instrumental Assumption. De Gruyter, 2014.
MLA引文Xavier, de Luna, 与 Johansson Per. Testing for the Unconfoundedness Assumption Using an Instrumental Assumption. De Gruyter, 2014.
警告：这些引文格式不一定是100％准确.