ARMSTRONG MICHAEL. (1986). A HANDBOOK OF MANAGEMENT TECHNIQUES. KOGAN PAGE.
Lua i Stíl Chicago (17ú heag.)ARMSTRONG MICHAEL. A HANDBOOK OF MANAGEMENT TECHNIQUES. LONDON: KOGAN PAGE, 1986.
Lua MLA (9ú heag.)ARMSTRONG MICHAEL. A HANDBOOK OF MANAGEMENT TECHNIQUES. KOGAN PAGE, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.