Cita APA (7a ed.)
Allen,Charles L. (1987). God's seven wonders for you. Fleming H. Revell..
Cita Chicago Style (17a ed.)
Allen,Charles L. God's Seven Wonders for You. New York: Fleming H. Revell., 1987.
Cita MLA (9a ed.)
Allen,Charles L. God's Seven Wonders for You. Fleming H. Revell., 1987.
Precaución: Estas citas no son 100% exactas.