Purchasing Association of the Philippines. (1970). Philippine buyer's guide, 1970. Purchasing Association of the Philippines.
Citace podle Chicago (17th ed.)Purchasing Association of the Philippines. Philippine Buyer's Guide, 1970. Manila: Purchasing Association of the Philippines, 1970.
Citace podle MLA (9th ed.)Purchasing Association of the Philippines. Philippine Buyer's Guide, 1970. Purchasing Association of the Philippines, 1970.
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