Cita APA (7th ed.)

Bertcher, H. J., & Maple, F. F. (1996). Creating groups (2d ed.). Sage Publications.

Cita Chicago (17th ed.)

Bertcher, Harvey J., i Frank F. Maple. Creating Groups. 2d ed. Thousand Oaks, Calif: Sage Publications, 1996.

Cita MLA (9th ed.)

Bertcher, Harvey J., i Frank F. Maple. Creating Groups. 2d ed. Sage Publications, 1996.