Citace podle APA (7th ed.)

Minneapolis. Public Library. Environmental Conservation Library. (1974). ECOL book catalog: Environmental conservation library. American Library Association.

Citace podle Chicago (17th ed.)

Minneapolis. Public Library. Environmental Conservation Library. ECOL Book Catalog: Environmental Conservation Library. Chicago: American Library Association, 1974.

Citace podle MLA (9th ed.)

Minneapolis. Public Library. Environmental Conservation Library. ECOL Book Catalog: Environmental Conservation Library. American Library Association, 1974.

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