Cohen, M., & Bodeker, G. (2008). Understanding the global spa industry: Spa management. Butterworth-Heimann.
Chicago Style aipamenaCohen, Marc, and Gerard Bodeker. Understanding the Global Spa Industry: Spa Management. Amsterdam: Butterworth-Heimann, 2008.
MLA aipamenaCohen, Marc, and Gerard Bodeker. Understanding the Global Spa Industry: Spa Management. Butterworth-Heimann, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.