GASS, S. M. [. e. (1990). Linguistic perspectives on second language acquisition. Cambridge Univ. Press.
Chicago Style aipamenaGASS, Susan M. [ ed.]. Linguistic Perspectives on Second Language Acquisition. New York: Cambridge Univ. Press, 1990.
MLA aipamenaGASS, Susan M. [ ed.]. Linguistic Perspectives on Second Language Acquisition. Cambridge Univ. Press, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.