APA (7th ed.) Citation

Earle, O. L. (1973). State trees (Newly rev. ed.). Morrow.

Chicago Style (17th ed.) Citation

Earle, Olive Lydia. State Trees. Newly rev. ed. New York: Morrow, 1973.

MLA (9th ed.) Citation

Earle, Olive Lydia. State Trees. Newly rev. ed. Morrow, 1973.