Jones, L. (1986). Progress to proficiency: Student's book. Cambridge: Cambridge Univ. Press.
Trích dẫn kiểu ChicagoJones, Leo. Progress to Proficiency: Student's Book. Cambridge: Cambridge Univ. Press, 1986.
MLA引文Jones, Leo. Progress to Proficiency: Student's Book. Cambridge: Cambridge Univ. Press, 1986.
警告:這些引文格式不一定是100%准確.