Jonew, M. (1973). Commerce examination question answered. Pitman Pub.
Lua i Stíl Chicago (17ú heag.)Jonew, M. Commerce Examination Question Answered. London: Pitman Pub, 1973.
Lua MLA (9ú heag.)Jonew, M. Commerce Examination Question Answered. Pitman Pub, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.