APA-čujuhus (7. p.)
Gelman, R., & Gallistel, C. R. (1978). The child's understanding of number. Harvard University Press.
Chicago-čujuhus (17. p.)
Gelman, Rochel, juo C. R. Gallistel. The Child's Understanding of Number. Cambridge, MA: Harvard University Press, 1978.
MLA-čujuhus (9. p.)
Gelman, Rochel, juo C. R. Gallistel. The Child's Understanding of Number. Harvard University Press, 1978.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.