VERZELLO, R. J., & REUTTER, J. I. (1982). Data processing systems and concepts. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)VERZELLO, Robert J., agus John III REUTTER. Data Processing Systems and Concepts. New York: McGraw-Hill, 1982.
Lua MLA (9ú heag.)VERZELLO, Robert J., agus John III REUTTER. Data Processing Systems and Concepts. McGraw-Hill, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.