CHAPMAN ELWOOD N. (1986). FIFTY MINUTE SUPERVISIOR.A GUIDE FOR THE NEWLY PROMOTED. KOGAN PAGE.
Lua i Stíl Chicago (17ú heag.)CHAPMAN ELWOOD N. FIFTY MINUTE SUPERVISIOR.A GUIDE FOR THE NEWLY PROMOTED. LONDON: KOGAN PAGE, 1986.
Lua MLA (9ú heag.)CHAPMAN ELWOOD N. FIFTY MINUTE SUPERVISIOR.A GUIDE FOR THE NEWLY PROMOTED. KOGAN PAGE, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.