Gonzales, E. M. P., Aguirre, V. V. M., Tarlit, R. Y., & Obille, K. L. B. (2009). An authority file of Philippine Government Names of Executive Branch from the department level to the bureau level with historical notes and references.
Chicago-referens (17:e uppl.)Gonzales, Edilisa Marie P., Vyva Victoria M. Aguirre, Rodolfo Y. Tarlit, och Kathleen Lourdes B. Obille. An Authority File of Philippine Government Names of Executive Branch from the Department Level to the Bureau Level with Historical Notes and References. Quezon City : School of Library and Information Studies, University of the Philippines Diliman, 2009.
MLA-referens (9:e uppl.)Gonzales, Edilisa Marie P., et al. An Authority File of Philippine Government Names of Executive Branch from the Department Level to the Bureau Level with Historical Notes and References. 2009.