Cita APA (7th ed.)

Williams, A., & Sylvester, A. (1977). Public works, past, present and future in the Philippine Islands [microform]. Photoduplication Service, University of the Philippines Library.

Cita Chicago (17th ed.)

Williams, A.D, i A.T Sylvester. Public Works, Past, Present and Future in the Philippine Islands [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.

Cita MLA (9th ed.)

Williams, A.D, i A.T Sylvester. Public Works, Past, Present and Future in the Philippine Islands [microform]. Photoduplication Service, University of the Philippines Library, 1977.