Jones, L. (1986). Progress to proficiency: Student's book. Cambridge: Cambridge Univ. Press.
Chicago Style CitationJones, Leo. Progress to Proficiency: Student's Book. Cambridge: Cambridge Univ. Press, 1986.
MLA CitationJones, Leo. Progress to Proficiency: Student's Book. Cambridge: Cambridge Univ. Press, 1986.
Warning: These citations may not always be 100% accurate.