Tsichritzis, D. C., & Lochovsky, F. H. (1977). Data base management systems. Academic press.
Lua i Stíl Chicago (17ú heag.)Tsichritzis, Dionysios C., agus Frederick H. Lochovsky. Data Base Management Systems. New York ; San Francisco ; London: Academic press, 1977.
Lua MLA (8ú heag.)Tsichritzis, Dionysios C., agus Frederick H. Lochovsky. Data Base Management Systems. Academic press, 1977.
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