Gaya APA

Vermetten, E. et al (2018). Sleep and Combat-Related Post Traumatic Stress Disorder (1st ed. 2018). New york: Springer International Publishing.

Gaya MLA

Vermetten, Eric. et al. "Sleep and Combat-Related Post Traumatic Stress Disorder". 1st ed. 2018 New york: Springer International Publishing, 2018. Text.