Robison, J. (1973). Modern Algebra & Drigonomentry. McGraw Hill.
Chicago-čujuhus (17. p.)Robison, J. Modern Algebra & Drigonomentry. New York: McGraw Hill, 1973.
MLA-čujuhus (9. p.)Robison, J. Modern Algebra & Drigonomentry. McGraw Hill, 1973.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.