APA (7th ed.) Citation

Nipkow, T., Paulson, L. C., & Wenzel, M. (2002). Isabelle/HOL: A proof assistant for higher-order logic. Springer.

Chicago Style (17th ed.) Citation

Nipkow, Tobias, Lawrence C. Paulson, and Markus Wenzel. Isabelle/HOL: A Proof Assistant for Higher-order Logic. Berlin ; New York: Springer, 2002.

MLA (9th ed.) Citation

Nipkow, Tobias, et al. Isabelle/HOL: A Proof Assistant for Higher-order Logic. Springer, 2002.