Dallas, D., & Iggulden, . M. (1990). Let's learn English. Longman.
Chicago Style (17th ed.) CitationDallas, Donald, and Margaret Iggulden. Let's Learn English. Harlow: Longman, 1990.
MLA引文Dallas, Donald, and Margaret Iggulden. Let's Learn English. Longman, 1990.
警告:這些引文格式不一定是100%准確.