HARPER W M. (1977). MANAGEMENT ACCOUNTING (2ND.). MACDONALD & EVANS.
Lua i Stíl Chicago (17ú heag.)HARPER W M. MANAGEMENT ACCOUNTING. 2ND. LONDON: MACDONALD & EVANS, 1977.
Lua MLA (9ú heag.)HARPER W M. MANAGEMENT ACCOUNTING. 2ND. MACDONALD & EVANS, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.