APA (7th ed.) Citation

Vergel, K., & Lidasan, H. S. A study on the state of the transportation environment in Metro Manila. Philippine Engineering Journal.

Chicago Style (17th ed.) Citation

Vergel, Karl, and Hussein S. Lidasan. "A Study on the State of the Transportation Environment in Metro Manila." Philippine Engineering Journal .

MLA (9th ed.) Citation

Vergel, Karl, and Hussein S. Lidasan. "A Study on the State of the Transportation Environment in Metro Manila." Philippine Engineering Journal, .