APA-referens (7:e uppl.)

DATE C J. (1987). INTRODUCTION TO DATABASE SYSTEMS (3.). ADDISON-WESLEY.

Chicago-referens (17:e uppl.)

DATE C J. INTRODUCTION TO DATABASE SYSTEMS. 3. CANADA: ADDISON-WESLEY, 1987.

MLA-referens (9:e uppl.)

DATE C J. INTRODUCTION TO DATABASE SYSTEMS. 3. ADDISON-WESLEY, 1987.