APA-viite (7. p.)

Berry, W. D. (1984). Nonrecursive causal models. Sage Publications.

Chicago-viite (17. p.)

Berry, William Dale. Nonrecursive Causal Models. Beverly Hills, Calif.: Sage Publications, 1984.

MLA-viite (8. p.)

Berry, William Dale. Nonrecursive Causal Models. Sage Publications, 1984.