Estopin, D. L., & Umlas, A. J. L. Spending for vehicular congestion in Metro Manila.
芝加哥风格引文Estopin, Danica Loy, 与 Anna Jennifer L. Umlas. Spending for Vehicular Congestion in Metro Manila.
MLA引文Estopin, Danica Loy, 与 Anna Jennifer L. Umlas. Spending for Vehicular Congestion in Metro Manila.
警告：这些引文格式不一定是100％准确.