Thalheim, B. (2000). Entity-relationship modeling: Foundations of database technology. Springer.
Tohutoru Kātū Chicago (17th ed.)Thalheim, Bernhard. Entity-relationship Modeling: Foundations of Database Technology. Berlín: Springer, 2000.
Tohutoro MLA (9th ed.)Thalheim, Bernhard. Entity-relationship Modeling: Foundations of Database Technology. Springer, 2000.
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