APA-čujuhus (7. p.)
Clemson, D., & Clemson, W. (1994). Mathematics in the early years. Routledge.
Chicago-čujuhus (17. p.)
Clemson, David, juo Wendy Clemson. Mathematics in the Early Years. London ; New York: Routledge, 1994.
MLA-čujuhus (9. p.)
Clemson, David, juo Wendy Clemson. Mathematics in the Early Years. Routledge, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.