APA (7th ed.) Zitazioa
Watson, E. Growth and development of children (2a. ed.).
Chicago Style (17th ed.) Zitazioa
Watson, E.H. Growth and Development of Children. 2a. ed. Chicago.
MLA (9th ed.) Zitazioa
Watson, E.H. Growth and Development of Children. 2a. ed.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.