Philippines (Republic). Board of Technical Surveys and Maps. (1960). Report on the status of surveying and mapping activities in the Philippines. s.n.].
Citace podle Chicago (17th ed.)Philippines (Republic). Board of Technical Surveys and Maps. Report on the Status of Surveying and Mapping Activities in the Philippines. [Manila: s.n.], 1960.
Citace podle MLA (9th ed.)Philippines (Republic). Board of Technical Surveys and Maps. Report on the Status of Surveying and Mapping Activities in the Philippines. s.n.], 1960.
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