APA (7th ed.) Citation

Summers, R. S. (1987). Contract and related obligation: Theory, doctrine, and practice. West Pub. Co.

Chicago Style (17th ed.) Citation

Summers, Robert S. Contract and Related Obligation: Theory, Doctrine, and Practice. St. Paul, Minn: West Pub. Co, 1987.

MLA (9th ed.) Citation

Summers, Robert S. Contract and Related Obligation: Theory, Doctrine, and Practice. West Pub. Co, 1987.