APA (7th ed.) Citation

Perkins, E. (1998). Leave before you go (1st U.S. ed.). Ecco Press.

Chicago Style (17th ed.) Citation

Perkins, Emily. Leave Before You Go. 1st U.S. ed. New York: Ecco Press, 1998.

MLA (9th ed.) Citation

Perkins, Emily. Leave Before You Go. 1st U.S. ed. Ecco Press, 1998.