TRIGG, C. W. (1967). Mathematical quickies. McGraw-Hill.
Chicago-čujuhus (17. p.)TRIGG, Charles W. Mathematical Quickies. New York: McGraw-Hill, 1967.
MLA-čujuhus (9. p.)TRIGG, Charles W. Mathematical Quickies. McGraw-Hill, 1967.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.