Certeza Surveying Co., Inc. (1965). Proposals on property tax maps preparations of Tarlac province. s.n.
Čikaški stil citiranja (17. izdanje)Certeza Surveying Co., Inc. Proposals on Property Tax Maps Preparations of Tarlac Province. [Quezon City: s.n, 1965.
MLA način citiranja (9. izdanje)Certeza Surveying Co., Inc. Proposals on Property Tax Maps Preparations of Tarlac Province. s.n, 1965.
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