GILLESPIE, C. (1970). Standard And Direct Costing Cecil Gillespie. Prentice Hall of India Private.
Lua i Stíl Chicago (17ú heag.)GILLESPIE, Cecil. Standard And Direct Costing Cecil Gillespie. Prentice Hall of India Private, 1970.
Lua MLA (8ú heag.)GILLESPIE, Cecil. Standard And Direct Costing Cecil Gillespie. Prentice Hall of India Private, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.