ONCKEN WILLIAM. (1984). MANAGING MANAGEMENT TIME WHO`S GOT THE MONKEY. PRENTICE -HALL INTERNATIONAL, INC.
Lua i Stíl Chicago (17ú heag.)ONCKEN WILLIAM. MANAGING MANAGEMENT TIME WHO`S GOT THE MONKEY. NEW JERSEY: PRENTICE -HALL INTERNATIONAL, INC, 1984.
Lua MLA (9ú heag.)ONCKEN WILLIAM. MANAGING MANAGEMENT TIME WHO`S GOT THE MONKEY. PRENTICE -HALL INTERNATIONAL, INC, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.