Cita APA (7a ed.)

Murphy, E. J., & Speidel, R. E. (1984). Studies in contract law (3rd ed.). Foundation.

Cita Chicago Style (17a ed.)

Murphy, Edward J., y Richard E. Speidel. Studies in Contract Law. 3rd ed. Mineola, N.Y.: Foundation, 1984.

Cita MLA (9a ed.)

Murphy, Edward J., y Richard E. Speidel. Studies in Contract Law. 3rd ed. Foundation, 1984.