Παραπομπή σε μορφή APA (7η εκδ.)

(1998). Frequently asked questions about phone cards. Manila Times.

Παραπομπή σε μορφή Chicago (17η εκδ.)

"Frequently Asked Questions About Phone Cards." Manila Times 1998.

Παραπομπή σε μορφή MLA (9th εκδ.)

"Frequently Asked Questions About Phone Cards." Manila Times, 1998.