APA (7th ed.) Citation

Calamari, J. D., & Perillo, J. M. (1999). Contracts (3rd ed.). West Group.

Chicago Style (17th ed.) Citation

Calamari, John D., and Joseph M. Perillo. Contracts. 3rd ed. St. Paul, Minn.: West Group, 1999.

MLA (9th ed.) Citation

Calamari, John D., and Joseph M. Perillo. Contracts. 3rd ed. West Group, 1999.