Graves, K., & Rein, D. P. (1990). East west: Teachers guide. New York: Oxford University Press.
Chicago Style aipamenaGraves, Kathleen., và David P. Rein. East West: Teachers Guide. New York: Oxford University Press, 1990.
MLA aipamenaGraves, Kathleen., và David P. Rein. East West: Teachers Guide. New York: Oxford University Press, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.