APA (7th ed.) Citation

Alexander, R. (1979). Elements of a theory of second language learning. Lang.

Chicago Style (17th ed.) Citation

Alexander, Richard. Elements of a Theory of Second Language Learning. Frankfurt a.M. ; Bern ; Las Vegas: Lang, 1979.

MLA (9th ed.) Citation

Alexander, Richard. Elements of a Theory of Second Language Learning. Lang, 1979.

Warning: These citations may not always be 100% accurate.