APA-ийн эшлэл(7 дахь хэвлэлт)

Williams, G., & Lukin, A. (2004). The development of language: Functional perspectives on species and individuals (1a. ed.). Continuum.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Williams, Geoff, ба Annabelle Lukin. The Development of Language: Functional Perspectives on Species and Individuals. 1a. ed. Londres: Continuum, 2004.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Williams, Geoff, ба Annabelle Lukin. The Development of Language: Functional Perspectives on Species and Individuals. 1a. ed. Continuum, 2004.