SCHWARTZ, R. D. (1996). Information Systems Using, Dss Software Ronald D. Schwartz, Dale P. Bonar, Gregory D. Kosicki. Boyd & Fraser Publishing.
Lua i Stíl Chicago (17ú heag.)SCHWARTZ, Ronald D. Information Systems Using, Dss Software Ronald D. Schwartz, Dale P. Bonar, Gregory D. Kosicki. Boyd & Fraser Publishing, 1996.
Lua MLA (8ú heag.)SCHWARTZ, Ronald D. Information Systems Using, Dss Software Ronald D. Schwartz, Dale P. Bonar, Gregory D. Kosicki. Boyd & Fraser Publishing, 1996.
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