ebrary, Inc, Rakison, D. H., & Oakes, L. M. (2003). Early category and concept development: Making sense of the blooming, buzzing confusion. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)ebrary, Inc, David H. Rakison, agus Lisa M. Oakes. Early Category and Concept Development: Making Sense of the Blooming, Buzzing Confusion. Oxford ; New York: Oxford University Press, 2003.
Lua MLA (9ú heag.)ebrary, Inc, et al. Early Category and Concept Development: Making Sense of the Blooming, Buzzing Confusion. Oxford University Press, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.