APA (7th ed.) Citation

Blalock, H. M. (1964). Causal inferences in nonexperimental research. University of North Carolina Press.

Chicago Style (17th ed.) Citation

Blalock, Hubert M. Causal Inferences in Nonexperimental Research. Chapell Hill, North Carolina: University of North Carolina Press, 1964.

MLA (9th ed.) Citation

Blalock, Hubert M. Causal Inferences in Nonexperimental Research. University of North Carolina Press, 1964.