MLA

Pagel, J.F.; Pandi-Perumal, S.R, James F Pagel, and S. R Pandi-Perumal. Primary Care Sleep Medicine. Humana Press, 2007.

APA

Pagel, S., Pagel, J. F, & Pandi-Perumal, S. R. (2007). Primary Care Sleep Medicine. Humana Press.

Chicago

Pagel, J.F.; Pandi-Perumal, S.R, James F Pagel, and S. R Pandi-Perumal. Primary Care Sleep Medicine. : Humana Press, 2007.