Lawless, R. (1977). Societal ecology in Northern Luzon: Kalinga agriculture, organization, population, and change. Department of Anthropology, University of Oklahoma.
Citace podle Chicago (17th ed.)Lawless, Robert. Societal Ecology in Northern Luzon: Kalinga Agriculture, Organization, Population, and Change. Norman, Okla: Department of Anthropology, University of Oklahoma, 1977.
Citace podle MLA (9th ed.)Lawless, Robert. Societal Ecology in Northern Luzon: Kalinga Agriculture, Organization, Population, and Change. Department of Anthropology, University of Oklahoma, 1977.
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