Philippines. Bureau of Coast and Geodetic Survey. (1987). Tandang Sora. Bureau of Coast and Geodetic Survey [distributor].
Chicago-viite (17. p.)Philippines. Bureau of Coast and Geodetic Survey. Tandang Sora. Manila: Bureau of Coast and Geodetic Survey [distributor], 1987.
MLA-viite (9. p.)Philippines. Bureau of Coast and Geodetic Survey. Tandang Sora. Bureau of Coast and Geodetic Survey [distributor], 1987.
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