APA-referens (7:e uppl.)

ORILIA LAWRENCE S. (1982). INTRODUCTION TO BUSINESS DATA PROCESSING (2ND.). MCGRAW-HILL.

Chicago-referens (17:e uppl.)

ORILIA LAWRENCE S. INTRODUCTION TO BUSINESS DATA PROCESSING. 2ND. SINGAPORE: MCGRAW-HILL, 1982.

MLA-referens (9:e uppl.)

ORILIA LAWRENCE S. INTRODUCTION TO BUSINESS DATA PROCESSING. 2ND. MCGRAW-HILL, 1982.