Douglas, M. (1996). Natural symbols: Explorations in cosmology. Routledge.
Tohutoru Kātū Chicago (17th ed.)Douglas, Mary. Natural Symbols: Explorations in Cosmology. London ; New York: Routledge, 1996.
Tohutoro MLA (9th ed.)Douglas, Mary. Natural Symbols: Explorations in Cosmology. Routledge, 1996.
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