Frobess-Greene, S. (1983). The Encyclopedia of icebreakers: Structured activities that warm-up, motivate, challenge, acquaint, and energize. Pfeiffer.
Chicago-referens (17:e uppl.)Frobess-Greene, Sue. The Encyclopedia of Icebreakers: Structured Activities That Warm-up, Motivate, Challenge, Acquaint, and Energize. San Francisco, CA: Pfeiffer, 1983.
MLA-referens (9:e uppl.)Frobess-Greene, Sue. The Encyclopedia of Icebreakers: Structured Activities That Warm-up, Motivate, Challenge, Acquaint, and Energize. Pfeiffer, 1983.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.