Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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