Retherford, R. D., & Choe,Minja Kim. (1993). Statistical models for causal analysis. John Wiley &Sons.
Chicago Edition CitationRetherford, Robert D., i Choe,Minja Kim. Statistical Models for Causal Analysis. New York: John Wiley &Sons, 1993.
Cita MLARetherford, Robert D., i Choe,Minja Kim. Statistical Models for Causal Analysis. John Wiley &Sons, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.