Lua APA (7ú heag.)
Hearn, P. (1979). Successful negotiation of commercial contracts. Oyez.
Lua i Stíl Chicago (17ú heag.)
Hearn, Patrick. Successful Negotiation of Commercial Contracts. London: Oyez, 1979.
Lua MLA (9ú heag.)
Hearn, Patrick. Successful Negotiation of Commercial Contracts. Oyez, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.