Perrin, P. G. (1965). Writer's guide and index to English. Chicago: Scott, Foresman and Company.
Trích dẫn kiểu ChicagoPerrin, Porter G. Writer's Guide and Index to English. Chicago: Scott, Foresman and Company, 1965.
MLA引文Perrin, Porter G. Writer's Guide and Index to English. Chicago: Scott, Foresman and Company, 1965.
警告:这些引文格式不一定是100%准确.