APA aipamena

Không rõ. (2000). Web Marketing and Project management. NOTNXB.

Chicago Style aipamena

Không rõ. Web Marketing and Project Management. NOTNXB, 2000.

MLA aipamena

Không rõ. Web Marketing and Project Management. NOTNXB, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.