APA (7th ed.) Citation

Gibbs, J. (1995). Tribes: A new way of learning and being together. Center Source Systems.

Chicago Style (17th ed.) Citation

Gibbs, Jeanne. Tribes: A New Way of Learning and Being Together. Sausalito, Calif: Center Source Systems, 1995.

MLA (9th ed.) Citation

Gibbs, Jeanne. Tribes: A New Way of Learning and Being Together. Center Source Systems, 1995.