Freeman, M. H. (1953). Workbook for Bookkeeping simplified. Gregg Publishing Division, McGraw-Hill Book Co..
Lua i Stíl Chicago (17ú heag.)Freeman, M. Herbert. Workbook for Bookkeeping Simplified. New York: Gregg Publishing Division, McGraw-Hill Book Co., 1953.
Lua MLA (8ú heag.)Freeman, M. Herbert. Workbook for Bookkeeping Simplified. Gregg Publishing Division, McGraw-Hill Book Co., 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.