ORILIA LAWRENCE S. (1982). INTRODUCTION TO BUSINESS DATA PROCESSING (2ND.). MCGRAW-HILL.
Lua i Stíl Chicago (17ú heag.)ORILIA LAWRENCE S. INTRODUCTION TO BUSINESS DATA PROCESSING. 2ND. SINGAPORE: MCGRAW-HILL, 1982.
Lua MLA (9ú heag.)ORILIA LAWRENCE S. INTRODUCTION TO BUSINESS DATA PROCESSING. 2ND. MCGRAW-HILL, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.