APA (7e ed.) Bronvermelding

Mason, R. (1971). programmed learning Aid for college mathematies. Learning system company vision of R.D Irwin.

Chicago (17e ed.) Bronvermelding

Mason, R. Programmed Learning Aid for College Mathematies. Homewood: Learning system company vision of R.D Irwin, 1971.

MLA (9e ed.) Bronvermelding

Mason, R. Programmed Learning Aid for College Mathematies. Learning system company vision of R.D Irwin, 1971.