BRADLEY JAMES. (1983). INTRODUCTION TO DATA BASE MANAGEMENT IN BUSINESS. HOLT SAUNDERS.
Lua i Stíl Chicago (17ú heag.)BRADLEY JAMES. INTRODUCTION TO DATA BASE MANAGEMENT IN BUSINESS. JAPAN: HOLT SAUNDERS, 1983.
Lua MLA (9ú heag.)BRADLEY JAMES. INTRODUCTION TO DATA BASE MANAGEMENT IN BUSINESS. HOLT SAUNDERS, 1983.
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