Jones, L. (1986). Progress to proficiency: Teacher's book. Cambridge University Press.
Chicago Style (17th ed.) CitationJones, Leo. Progress to Proficiency: Teacher's Book. Camridge: Cambridge University Press, 1986.
MLA (8th ed.) CitationJones, Leo. Progress to Proficiency: Teacher's Book. Cambridge University Press, 1986.
Warning: These citations may not always be 100% accurate.