APA (7th ed.) Citation

Ulfberg, J. (1999). Sleep disordered breathing at work: Cause and effects.

Chicago Style (17th ed.) Citation

Ulfberg, Jan. Sleep Disordered Breathing at Work: Cause and Effects. 1999.

MLA (8th ed.) Citation

Ulfberg, Jan. Sleep Disordered Breathing at Work: Cause and Effects. 1999.

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