(2003). New Headway Pet Pract Test Student's Book Pack 2004. Karim Internations.
芝加哥风格引文New Headway Pet Pract Test Student's Book Pack 2004. New York: Karim Internations, 2003.
MLA引文New Headway Pet Pract Test Student's Book Pack 2004. Karim Internations, 2003.
警告：这些引文格式不一定是100％准确.