APA citiranje

Watson, N. F., Buchwald, D., Vitiello, M. V., Noonan, C., & Goldberg, J. (2010). A Twin Study of Sleep Duration and Body Mass Index. American Academy of Sleep Medicine.

Citação norma Chicago

Watson, Nathaniel F., Dedra Buchwald, Michael V. Vitiello, Carolyn Noonan, and Jack Goldberg. A Twin Study of Sleep Duration and Body Mass Index. American Academy of Sleep Medicine, 2010.

MLA citiranje

Watson, Nathaniel F., et al. A Twin Study of Sleep Duration and Body Mass Index. American Academy of Sleep Medicine, 2010.