Ur, P. (1991). A course in language teaching: Practice and theory. Cambridge, NY: Cambridge University Press.
Trích dẫn kiểu ChicagoUr, Penny. A Course in Language Teaching: Practice and Theory. Cambridge, NY: Cambridge University Press, 1991.
MLA引文Ur, Penny. A Course in Language Teaching: Practice and Theory. Cambridge, NY: Cambridge University Press, 1991.
警告:这些引文格式不一定是100%准确.