ebrary, Inc, Workshop on the Sleep Needs, Patterns, and Difficulties of Adolescents, & Graham, M. G. (2000). Sleep needs, patterns, and difficulties of adolescents: Summary of a workshop : forum on adolescence. National Academy Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)ebrary, Inc, Patterns Workshop on the Sleep Needs, και Mary G. Graham. Sleep Needs, Patterns, and Difficulties of Adolescents: Summary of a Workshop : Forum on Adolescence. Washington, D.C.: National Academy Press, 2000.
Παραπομπή σε μορφή MLA (9th εκδ.)ebrary, Inc, et al. Sleep Needs, Patterns, and Difficulties of Adolescents: Summary of a Workshop : Forum on Adolescence. National Academy Press, 2000.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.