Cita APA (7a ed.)

Willmott, L., Christensen, S., & Butler, D. (2001). Contract law (1st. ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

Willmott, Lindy, Sharon Christensen, y Des Butler. Contract Law. 1st. ed. Melbourne: Oxford University Press, 2001.

Cita MLA (8a ed.)

Willmott, Lindy, et al. Contract Law. 1st. ed. Oxford University Press, 2001.