APA (7th ed.) Citation

Büttner, A. (2009). The sleep apnea syndrome, more as an illness. Nova Science Publishers.

Chicago Style (17th ed.) Citation

Büttner, A. The Sleep Apnea Syndrome, More as an Illness. New York: Nova Science Publishers, 2009.

MLA (9th ed.) Citation

Büttner, A. The Sleep Apnea Syndrome, More as an Illness. Nova Science Publishers, 2009.