Mercado, R. P. (1976). Consumer's mathematics (elective for the high schools) with cooperatives. Phil. Book Co.
Chicago-referens (17:e uppl.)Mercado, Rosario P. Consumer's Mathematics (elective for the High Schools) with Cooperatives. Manila: Phil. Book Co, 1976.
MLA-referens (9:e uppl.)Mercado, Rosario P. Consumer's Mathematics (elective for the High Schools) with Cooperatives. Phil. Book Co, 1976.
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