APA (7th ed.) Zitazioa
Ehrenfeld, D. (2002). Swimming lessons: Keeping afloat in the age of technology. Oxford University Press.
Chicago Style (17th ed.) Zitazioa
Ehrenfeld, David. Swimming Lessons: Keeping Afloat in the Age of Technology. London ; New York: Oxford University Press, 2002.
MLA (9th ed.) Zitazioa
Ehrenfeld, David. Swimming Lessons: Keeping Afloat in the Age of Technology. Oxford University Press, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.