APA-ийн эшлэл(7 дахь хэвлэлт)

SECOND LANGUAGE & BIRDSONG, D. [. (1999). Second language acquisition and the critical period hypothesis/edited David Birdsong. Lawrence Erlbaum Associates.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

SECOND LANGUAGE ба David [ed.] BIRDSONG. Second Language Acquisition and the Critical Period Hypothesis/edited David Birdsong. New Jersey: Lawrence Erlbaum Associates, 1999.

MLA -ийн эшлэл (9 дэх хэвлэлт)

SECOND LANGUAGE ба David [ed.] BIRDSONG. Second Language Acquisition and the Critical Period Hypothesis/edited David Birdsong. Lawrence Erlbaum Associates, 1999.