YORKEY, R. C. (1970). Study skills for students of english as a second language. McGraw-Hill Book.
芝加哥风格引文YORKEY, Richard C. Study Skills for Students of English as a Second Language. New York: McGraw-Hill Book, 1970.
MLA引文YORKEY, Richard C. Study Skills for Students of English as a Second Language. McGraw-Hill Book, 1970.
警告:这些引文格式不一定是100%准确.