APA (7th ed.) Citation

Hocker, P. J., Dufty, A., & Heffey, P. G. (1990). Contract: Commentary and materials (6. ed.). Law Book Co.

Chicago Style (17th ed.) Citation

Hocker, Peter J., Ann Dufty, and Peter G. Heffey. Contract: Commentary and Materials. 6. ed. Sydney: Law Book Co, 1990.

MLA (9th ed.) Citation

Hocker, Peter J., et al. Contract: Commentary and Materials. 6. ed. Law Book Co, 1990.