Barker, T. C. (1984). Shifting cultivation among the Ikalahans. Program on Environmental Science and Management, UPLB.
Citace podle Chicago (17th ed.)Barker, Thomas C. Shifting Cultivation Among the Ikalahans. College, Laguna: Program on Environmental Science and Management, UPLB, 1984.
Citace podle MLA (9th ed.)Barker, Thomas C. Shifting Cultivation Among the Ikalahans. Program on Environmental Science and Management, UPLB, 1984.
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