APA (7. basım) Alıntı

Ur, P. (1981). Discussions that work. Cambridge University Press.

Chicago Style (17. basım) Atıf

Ur, Penny. Discussions That Work. Cambridge: Cambridge University Press, 1981.

MLA (9th ed.) Atıf

Ur, Penny. Discussions That Work. Cambridge University Press, 1981.