MCFARLAND DALTON E. (1974). MANAGEMENT PRINCIPLES & PRACTICES (4.). MACMILLAN.
Lua i Stíl Chicago (17ú heag.)MCFARLAND DALTON E. MANAGEMENT PRINCIPLES & PRACTICES. 4. NEW YORK: MACMILLAN, 1974.
Lua MLA (9ú heag.)MCFARLAND DALTON E. MANAGEMENT PRINCIPLES & PRACTICES. 4. MACMILLAN, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.