Cita APA (7a ed.)

Willis, D. (1990). The lexical syllabus: A new approach to language teaching. Collins E.L.T.

Cita Chicago Style (17a ed.)

Willis, Dave. The Lexical Syllabus: A New Approach to Language Teaching. London [etc.]: Collins E.L.T, 1990.

Cita MLA (9a ed.)

Willis, Dave. The Lexical Syllabus: A New Approach to Language Teaching. Collins E.L.T, 1990.