Kilsdonk, A. G. (1983). Human ecology: Meaning and usage. College of Human Ecology, Michigan State University.
Citace podle Chicago (17th ed.)Kilsdonk, Ann Gabriel. Human Ecology: Meaning and Usage. Michigan: College of Human Ecology, Michigan State University, 1983.
Citace podle MLA (8th ed.)Kilsdonk, Ann Gabriel. Human Ecology: Meaning and Usage. College of Human Ecology, Michigan State University, 1983.
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