APA

International Congress of Ecology, . (1986). Program of the iv international congress of ecology. New York: The Congress.

Chicago

International Congress of Ecology, . 1986. Program of the iv international congress of ecology. New York: The Congress.

Harvard

International Congress of Ecology, . (1986). Program of the iv international congress of ecology. New York: The Congress.

MLA

International Congress of Ecology, . Program of the iv international congress of ecology. New York: The Congress. 1986.