Citace podle APA (7th ed.)

Greenwood, N. H., & J.M.B. Edwards. (1979). Human environments and natural systems (2nd ed.). Duxbury Pr..

Citace podle Chicago (17th ed.)

Greenwood, N. H., a J.M.B. Edwards. Human Environments and Natural Systems. 2nd ed. North Scituate, Mass: Duxbury Pr., 1979.

Citace podle MLA (9th ed.)

Greenwood, N. H., a J.M.B. Edwards. Human Environments and Natural Systems. 2nd ed. Duxbury Pr., 1979.

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