APA (7e ed.) Bronvermelding

Asher, H. B., & Lewis-Beck, M. S. (1983). Causal modeling (2nd ed.). Sage Publications.

Chicago (17e ed.) Bronvermelding

Asher, Herbert B., en Michael S. Lewis-Beck. Causal Modeling. 2nd ed. Beverly Hills ;: London: Sage Publications, 1983.

MLA (8e ed.) Bronvermelding

Asher, Herbert B., en Michael S. Lewis-Beck. Causal Modeling. 2nd ed. Sage Publications, 1983.