APA (7th ed.) Citation

Marcus, D. A. (2008). Headache simplified. tfm Publishing.

Chicago Style (17th ed.) Citation

Marcus, Dawn A. Headache Simplified. Castle Hill Barns, Shrewsbury, UK: tfm Publishing, 2008.

MLA (9th ed.) Citation

Marcus, Dawn A. Headache Simplified. tfm Publishing, 2008.

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