SPENCER DONALD D. (1982). DATA PROCESSING: AN INTRODUCTION (2ND.). CHARLES E MERRILL PUBLISHING COMPANY.
Chicago-čujuhus (17. p.)SPENCER DONALD D. DATA PROCESSING: AN INTRODUCTION. 2ND. LONDON: CHARLES E MERRILL PUBLISHING COMPANY, 1982.
MLA-čujuhus (9. p.)SPENCER DONALD D. DATA PROCESSING: AN INTRODUCTION. 2ND. CHARLES E MERRILL PUBLISHING COMPANY, 1982.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.