Παραπομπή APA

Retherford, R. D., & Choe,Minja Kim. (1993). Statistical models for causal analysis. John Wiley &Sons.

Παραπομπή Chicago Style

Retherford, Robert D., και Choe,Minja Kim. Statistical Models for Causal Analysis. New York: John Wiley &Sons, 1993.

Παραπομπή MLA

Retherford, Robert D., και Choe,Minja Kim. Statistical Models for Causal Analysis. John Wiley &Sons, 1993.