APA aipamena

Costales, A. C. (1997). The state of rural road infrastructure in the Philippines. Center for Policy and Development Studies, University of the Philippines at Los Baños.

Chicago Style aipamena

Costales, Achilles C. The State of Rural Road Infrastructure in the Philippines. College, Laguna: Center for Policy and Development Studies, University of the Philippines at Los Baños, 1997.

MLA aipamena

Costales, Achilles C. The State of Rural Road Infrastructure in the Philippines. Center for Policy and Development Studies, University of the Philippines at Los Baños, 1997.