Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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