LANGAN, J. (1977). English skills. McGraw-Hill.
Chicago Style (17th ed.) CitationLANGAN, John. English Skills. New York: McGraw-Hill, 1977.
MLA引文LANGAN, John. English Skills. McGraw-Hill, 1977.
警告：這些引文格式不一定是100％准確.
APA引文
LANGAN, J. (1977). English skills. McGraw-Hill.
Chicago Style (17th ed.) CitationLANGAN, John. English Skills. New York: McGraw-Hill, 1977.
MLA引文LANGAN, John. English Skills. McGraw-Hill, 1977.