Lakshmanan, U. (1994). Universal grammar in child second language acquisition: Null subjects and morphological uniformity. J. Benjamins.
芝加哥风格引文Lakshmanan, Usha. Universal Grammar in Child Second Language Acquisition: Null Subjects and Morphological Uniformity. Amsterdam ; Philadelphia: J. Benjamins, 1994.
MLA引文Lakshmanan, Usha. Universal Grammar in Child Second Language Acquisition: Null Subjects and Morphological Uniformity. J. Benjamins, 1994.
警告：这些引文格式不一定是100％准确.