APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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