Mason, R. (1971). programmed learning Aid for college mathematies. Learning system company vision of R.D Irwin.
Chicago-čujuhus (17. p.)Mason, R. Programmed Learning Aid for College Mathematies. Homewood: Learning system company vision of R.D Irwin, 1971.
MLA-čujuhus (9. p.)Mason, R. Programmed Learning Aid for College Mathematies. Learning system company vision of R.D Irwin, 1971.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.