APA (7th ed.) Citation

mason, R. D. (1976). Programmed learning aid for using the metric system. Richard D. Irwin.

Chicago Style (17th ed.) Citation

mason, Robert D. Programmed Learning Aid for Using the Metric System. Richard D. Irwin, 1976.

MLA (8th ed.) Citation

mason, Robert D. Programmed Learning Aid for Using the Metric System. Richard D. Irwin, 1976.

Warning: These citations may not always be 100% accurate.