Cita APA (7a ed.)

Barrett, T. (2008). The 100-year-old secret. Henry Holt and Co..

Cita Chicago Style (17a ed.)

Barrett, Tracy. The 100-year-old Secret. New York: Henry Holt and Co., 2008.

Cita MLA (8a ed.)

Barrett, Tracy. The 100-year-old Secret. Henry Holt and Co., 2008.

Precaución: Estas citas no son 100% exactas.