Cita APA (7a ed.)

Harley, B. (1995). Lexical issues in language learning. Language Learning [etc.].

Cita Chicago Style (17a ed.)

Harley, Birgit. Lexical Issues in Language Learning. Ann Arbor [etc.]: Language Learning [etc.], 1995.

Cita MLA (9a ed.)

Harley, Birgit. Lexical Issues in Language Learning. Language Learning [etc.], 1995.