APA Citation

Jones. (1993). Progress to proficiency: Student's book (2nd ed.). Cambridge: C.U.P..

Chicago Style Citation

Jones. Progress to Proficiency: Student's Book. 2nd ed. Cambridge: C.U.P., 1993.

MLA Citation

Jones. Progress to Proficiency: Student's Book. 2nd ed. Cambridge: C.U.P., 1993.

Warning: These citations may not always be 100% accurate.