Παραπομπή APA

Uliman Jeffrey, D. (1991). Principles of database systems. Galgotia publications.

Παραπομπή Chicago Style

Uliman Jeffrey, D. Principles of Database Systems. NewDelhi: Galgotia publications, 1991.

Παραπομπή MLA

Uliman Jeffrey, D. Principles of Database Systems. Galgotia publications, 1991.