LARSEN-FREEMAN, D., & LONG, M. H. (1999). An introduction to second language acquisition research. Longman.
芝加哥风格引文LARSEN-FREEMAN, Diane, 与 Michael H. LONG. An Introduction to Second Language Acquisition Research. London: Longman, 1999.
MLA引文LARSEN-FREEMAN, Diane, 与 Michael H. LONG. An Introduction to Second Language Acquisition Research. Longman, 1999.
警告：这些引文格式不一定是100％准确.