APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.