PARKINSON C NORTHCOTE. (1978). HOW TO GET TO THE TOP. MACMILLAN.
Lua i Stíl Chicago (17ú heag.)PARKINSON C NORTHCOTE. HOW TO GET TO THE TOP. NEW DELHI: MACMILLAN, 1978.
Lua MLA (9ú heag.)PARKINSON C NORTHCOTE. HOW TO GET TO THE TOP. MACMILLAN, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.