APA aipamena

Không rõ. (1991). Principles of Distributed Database Systems. NOTNXB.

Chicago Style aipamena

Không rõ. Principles of Distributed Database Systems. NOTNXB, 1991.

MLA aipamena

Không rõ. Principles of Distributed Database Systems. NOTNXB, 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.