Παραπομπή σε μορφή APA (7η εκδ.)

Valencia, L. B. (2001). DOTC makes strides to develop major airports with safety requirements. Manila Bulletin.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Valencia, Lynda B. "DOTC Makes Strides to Develop Major Airports with Safety Requirements." Manila Bulletin 2001.

Παραπομπή σε μορφή MLA (9th εκδ.)

Valencia, Lynda B. "DOTC Makes Strides to Develop Major Airports with Safety Requirements." Manila Bulletin, 2001.