Trinidad, R. F. (1973). An inquiry into the sources and methods of national income acounting in the Philippines [microform]. Photoduplication Service University of the Philippines Library.
Čikaški stil citiranja (17. izdanje)Trinidad, Ruben Flores. An Inquiry into the Sources and Methods of National Income Acounting in the Philippines [microform]. Quezon City: Photoduplication Service University of the Philippines Library, 1973.
MLA način citiranja (9. izdanje)Trinidad, Ruben Flores. An Inquiry into the Sources and Methods of National Income Acounting in the Philippines [microform]. Photoduplication Service University of the Philippines Library, 1973.
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