Cita APA (7th ed.)

Wilson, G. L., & Hanna, M. S. (1993). Groups in context: Leadership and participation in small groups (3rd ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Wilson, Gerald L., i Michael S. Hanna. Groups in Context: Leadership and Participation in Small Groups. 3rd ed. New York: McGraw-Hill, 1993.

Cita MLA (9th ed.)

Wilson, Gerald L., i Michael S. Hanna. Groups in Context: Leadership and Participation in Small Groups. 3rd ed. McGraw-Hill, 1993.