International Biological Programme, Royal Society, Walsh, R. J., & Harrison, G. A. (1974). A discussion on human adaptability in a tropical ecosystem: An I. B. P. human biological investigation of two New Guinea communities. Royal Society.
Chicago-viite (17. p.)International Biological Programme, Royal Society, R. J. Walsh, ja G. A. Harrison. A Discussion on Human Adaptability in a Tropical Ecosystem: An I. B. P. Human Biological Investigation of Two New Guinea Communities. London: Royal Society, 1974.
MLA-viite (9. p.)International Biological Programme, et al. A Discussion on Human Adaptability in a Tropical Ecosystem: An I. B. P. Human Biological Investigation of Two New Guinea Communities. Royal Society, 1974.
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