Croft, A., & Davison, R. (1997). Foundation maths: Essential maths for students (2nd ed.). Prentice Hall.
Chicago-čujuhus (17. p.)Croft, Anthony, juo Robert Davison. Foundation Maths: Essential Maths for Students. 2nd ed. Harlow, England: Prentice Hall, 1997.
MLA-čujuhus (9. p.)Croft, Anthony, juo Robert Davison. Foundation Maths: Essential Maths for Students. 2nd ed. Prentice Hall, 1997.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.