Graver, B. (1999). Advanced English practice (third edition.). New york: Cambridge University Press.
Trích dẫn kiểu ChicagoGraver, B.D. Advanced English Practice. third edition. New york: Cambridge University Press, 1999.
MLA引文Graver, B.D. Advanced English Practice. third edition. New york: Cambridge University Press, 1999.
警告：這些引文格式不一定是100％准確.