Cita APA (7th ed.)

Hansen, C. S. (1987). More group retreats. Thom Schultz.

Cita Chicago (17th ed.)

Hansen, Cindy S. More Group Retreats. Loveland: Thom Schultz, 1987.

Cita MLA (9th ed.)

Hansen, Cindy S. More Group Retreats. Thom Schultz, 1987.