ebrary, Inc, Hannahs, S. J., & Young-Scholten, M. (1997). Focus on phonological acquisition. J. Benjamins Pub..
芝加哥风格引文ebrary, Inc, S. J. Hannahs, 与 Martha Young-Scholten. Focus on Phonological Acquisition. Amsterdam ; Philadelphia: J. Benjamins Pub., 1997.
MLA引文ebrary, Inc, et al. Focus on Phonological Acquisition. J. Benjamins Pub., 1997.
警告：这些引文格式不一定是100％准确.