Cita APA

Leo Jones. (2001). New progress to proficiency (student's book). Cambridge: Cambridge Univ. Press.

Chicago Style Citation

Leo Jones. New Progress to Proficiency (student's Book). Cambridge: Cambridge Univ. Press, 2001.

Cita MLA

Leo Jones. New Progress to Proficiency (student's Book). Cambridge: Cambridge Univ. Press, 2001.

Atenció: Aquestes cites poden no estar 100% correctes.