APA-viite (7. p.)
Lakshmanan, U. (1994). Universal grammar in child second language acquisition: Null subjects and morphological uniformity. J. Benjamins.
Chicago-viite (17. p.)
Lakshmanan, Usha. Universal Grammar in Child Second Language Acquisition: Null Subjects and Morphological Uniformity. Amsterdam ; Philadelphia: J. Benjamins, 1994.
MLA-viite (9. p.)
Lakshmanan, Usha. Universal Grammar in Child Second Language Acquisition: Null Subjects and Morphological Uniformity. J. Benjamins, 1994.
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