Cita APA (7a ed.)

Clark, S. (2000). What really works: : the insider's guide to natural health. Thorson.

Cita Chicago Style (17a ed.)

Clark, Susan. What Really Works: : The Insider's Guide to Natural Health. London: Thorson, 2000.

Cita MLA (8a ed.)

Clark, Susan. What Really Works: : The Insider's Guide to Natural Health. Thorson, 2000.