Cita APA (7a ed.)
Barna, G. (1990). The frog in the kettle: What Christians need to know about life in the year 2000. Regal Books.
Cita Chicago Style (17a ed.)
Barna, George. The Frog in the Kettle: What Christians Need to Know About Life in the Year 2000. Ventura, Calif., U.S.A.: Regal Books, 1990.
Cita MLA (9a ed.)
Barna, George. The Frog in the Kettle: What Christians Need to Know About Life in the Year 2000. Regal Books, 1990.
Precaución: Estas citas no son 100% exactas.