Rio, W. S., Ortigas, I. L., & Seneriches, C. J. (1979). The impact of Iloilo airport expansion: Hypotheses and methods of analyses. Philippines Center for Economic Development.
Chicago-referens (17:e uppl.)Rio, Walden S., Irene L. Ortigas, och Candido Jr Seneriches. The Impact of Iloilo Airport Expansion: Hypotheses and Methods of Analyses. Quezon City: Philippines Center for Economic Development, 1979.
MLA-referens (9:e uppl.)Rio, Walden S., et al. The Impact of Iloilo Airport Expansion: Hypotheses and Methods of Analyses. Philippines Center for Economic Development, 1979.
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