Emanuel, S., Knowles, S., & Goldberg, S. (1993). Contracts (5th ed.). Emanuel Pub. Corp.
Lua i Stíl Chicago (17ú heag.)Emanuel, Steven, Steven Knowles, agus Stephen Goldberg. Contracts. 5th ed. Larchmont, N.Y: Emanuel Pub. Corp, 1993.
Lua MLA (9ú heag.)Emanuel, Steven, et al. Contracts. 5th ed. Emanuel Pub. Corp, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.