Philippines. Board of Investments. (1973). Position paper on glazed mosaic tiles. BOI.
Chicago-viite (17. p.)Philippines. Board of Investments. Position Paper on Glazed Mosaic Tiles. [Pasig, Rizal]: BOI, 1973.
MLA-viite (9. p.)Philippines. Board of Investments. Position Paper on Glazed Mosaic Tiles. BOI, 1973.
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