APA (7th ed.) Citation

Environmental Conservation Library of Minnesota. (1974). Ecol: Book catalog. American Library Association.

Chicago Style (17th ed.) Citation

Environmental Conservation Library of Minnesota. Ecol: Book Catalog. Chicago: American Library Association, 1974.

MLA (8th ed.) Citation

Environmental Conservation Library of Minnesota. Ecol: Book Catalog. American Library Association, 1974.

Warning: These citations may not always be 100% accurate.