Παραπομπή σε μορφή APA (7η εκδ.)

Villegas, B. M. (2000). It's strategic planning time again. IN Business and society [column]. Manila Bulletin.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Villegas, Bernardo M. "It's Strategic Planning Time Again. IN Business and Society [column]." Manila Bulletin 2000.

Παραπομπή σε μορφή MLA (9th εκδ.)

Villegas, Bernardo M. "It's Strategic Planning Time Again. IN Business and Society [column]." Manila Bulletin, 2000.