APA (7e ed.) Bronvermelding

Roxas, N. R. J., & Fillone, A. M. Income effect in inter-island passenger mode choice for the Western Visayas Region, Philippines. Philippine Engineering Journal.

Chicago (17e ed.) Bronvermelding

Roxas, Nicanor R. Jr, en Alexis M. Fillone. "Income Effect in Inter-island Passenger Mode Choice for the Western Visayas Region, Philippines." Philippine Engineering Journal .

MLA (9e ed.) Bronvermelding

Roxas, Nicanor R. Jr, en Alexis M. Fillone. "Income Effect in Inter-island Passenger Mode Choice for the Western Visayas Region, Philippines." Philippine Engineering Journal, .