APA (7th ed.) Citation

Grava, S. The Jeepney system. Philippine planning journal.

Chicago Style (17th ed.) Citation

Grava, Sigurd. "The Jeepney System." Philippine Planning Journal .

MLA (9th ed.) Citation

Grava, Sigurd. "The Jeepney System." Philippine Planning Journal, .

Warning: These citations may not always be 100% accurate.