Warren, C. P. (1981). A reappraisal of the Batak of Palawan, Philippines in light of new field data. University of Illinois at Chicago Circle.
Lua i Stíl Chicago (17ú heag.)Warren, Charles P. A Reappraisal of the Batak of Palawan, Philippines in Light of New Field Data. Chicago: University of Illinois at Chicago Circle, 1981.
Lua MLA (9ú heag.)Warren, Charles P. A Reappraisal of the Batak of Palawan, Philippines in Light of New Field Data. University of Illinois at Chicago Circle, 1981.
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