O'Connor, P., Pilbeam, A., & Scott-Barrett, F. (1992). Negotiating. Longman.
Lua i Stíl Chicago (17ú heag.)O'Connor, Philip, Adrian Pilbeam, agus Fiona Scott-Barrett. Negotiating. Harlow, Eng.: Longman, 1992.
Lua MLA (8ú heag.)O'Connor, Philip, et al. Negotiating. Longman, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.