Dyfyniad APA
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.
Dyfyniad Arddull Chicago
ebrary, Inc, Patterns Workshop on the Sleep Needs, and Mary G. Graham. Sleep Needs, Patterns, and Difficulties of Adolescents: Summary of a Workshop : Forum on Adolescence. Washington, D.C.: National Academy Press, 2000.
Dyfyniad MLA
ebrary, Inc, et al. Sleep Needs, Patterns, and Difficulties of Adolescents: Summary of a Workshop : Forum on Adolescence. National Academy Press, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.