Phister, M. (1979). Data processing technology and economics, 1975-1978 supplement. Santa Monica Pub. Co. order from Digital Press.
Chicago-viite (17. p.)Phister, Montgomery. Data Processing Technology and Economics, 1975-1978 Supplement. Santa Monica North Billerica, MA: Santa Monica Pub. Co. order from Digital Press, 1979.
MLA-viite (9. p.)Phister, Montgomery. Data Processing Technology and Economics, 1975-1978 Supplement. Santa Monica Pub. Co. order from Digital Press, 1979.
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