APA (7th ed.) Citation

Blalock, H. M. (1964). Causal inferences in nonexperimental research. W.W. Norton.

Chicago Style (17th ed.) Citation

Blalock, Hubert M. Causal Inferences in Nonexperimental Research. New York: W.W. Norton, 1964.

MLA (9th ed.) Citation

Blalock, Hubert M. Causal Inferences in Nonexperimental Research. W.W. Norton, 1964.