APA (7th ed.) Citation

Foster, D. W. (2000). Author unknown: On the trail of anonymous. Henry Holt.

Chicago Style (17th ed.) Citation

Foster, Donald W. Author Unknown: On the Trail of Anonymous. New York: Henry Holt, 2000.

MLA (9th ed.) Citation

Foster, Donald W. Author Unknown: On the Trail of Anonymous. Henry Holt, 2000.