Villegas, B. M., & Torralba, A. N. (1975). Economics for Philippine high schools: Development and progress through economics. Sinag-Tala.
Chicago Style (17th ed.) CitationVillegas, Bernardo M., and Antonio N. Torralba. Economics for Philippine High Schools: Development and Progress Through Economics. [Manila]: Sinag-Tala, 1975.
ציטוט MLAVillegas, Bernardo M., and Antonio N. Torralba. Economics for Philippine High Schools: Development and Progress Through Economics. Sinag-Tala, 1975.
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