Citace podle APA (7th ed.)

Não informado. (1971). Environment information access. Environmental Information Center of Ecology Forum.

Citace podle Chicago (17th ed.)

Não informado. Environment Information Access. New York: Environmental Information Center of Ecology Forum, 1971.

Citace podle MLA (8th ed.)

Não informado. Environment Information Access. Environmental Information Center of Ecology Forum, 1971.

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