Gaya APA

life-books, F, F, A, , T, E, O, T. (1963 1970). Ecology ; life Nature library . New York: The Life Book (New York).

Gaya MLA

life-books, Feter, Farb, And, , The, Editors, Of, Time. "Ecology ; life Nature library". New York: The Life Book (New York), 1963 1970. Text.