Schwarz, R. M. (1994). The skilled facilitator: Practical wisdom for developing effective groups. Jossey-Bass.
Chicago-viite (17. p.)Schwarz, Roger M. The Skilled Facilitator: Practical Wisdom for Developing Effective Groups. San Fransisco: Jossey-Bass, 1994.
MLA-viite (9. p.)Schwarz, Roger M. The Skilled Facilitator: Practical Wisdom for Developing Effective Groups. Jossey-Bass, 1994.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.