Παραπομπή σε μορφή APA (7η εκδ.)

Morgan, S. L., & Winship, C. (2007). Counterfactuals and causal inference: Methods and principles for social research. Cambridge University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Morgan, Stephen L., και Christopher Winship. Counterfactuals and Causal Inference: Methods and Principles for Social Research. New York: Cambridge University Press, 2007.

Παραπομπή σε μορφή MLA (8th εκδ.)

Morgan, Stephen L., και Christopher Winship. Counterfactuals and Causal Inference: Methods and Principles for Social Research. Cambridge University Press, 2007.