APA (7th ed.) Citation

Calude, C. S., Casti, J., & Dinneen, M. J. (1998). Unconventional models of computation. Springer.

Chicago Style (17th ed.) Citation

Calude, C. S., J. Casti, and M. J. Dinneen. Unconventional Models of Computation. Singapore New York: Springer, 1998.

MLA (8th ed.) Citation

Calude, C. S., et al. Unconventional Models of Computation. Springer, 1998.