Pfeiffer, J. W., & Nolde, . C. (1996). The Encyclopedia of team-building activities. University Associates ; Ben Johnston Pub..
Cita Chicago (17th ed.)Pfeiffer, J. William, i Carol Nolde. The Encyclopedia of Team-building Activities. San Diego, CA : New Delhi: University Associates ; Ben Johnston Pub., 1996.
Cita MLA (8th ed.)Pfeiffer, J. William, i Carol Nolde. The Encyclopedia of Team-building Activities. University Associates ; Ben Johnston Pub., 1996.
Atenció: Aquestes cites poden no estar 100% correctes.