Mason, R. (1971). programmed learning Aid for college mathematies. Learning system company vision of R.D Irwin.
Citazione stile Chigago Style (17a edizione)Mason, R. Programmed Learning Aid for College Mathematies. Homewood: Learning system company vision of R.D Irwin, 1971.
Citatione MLA (9a ed.)Mason, R. Programmed Learning Aid for College Mathematies. Learning system company vision of R.D Irwin, 1971.
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