APA (7th ed.) Citation

Gruber, E. (1976). 2300 steps to word power: Programmed learning without a machine. Arco.

Chicago Style (17th ed.) Citation

Gruber, Edward. 2300 Steps to Word Power: Programmed Learning Without a Machine. New York: Arco, 1976.

MLA (9th ed.) Citation

Gruber, Edward. 2300 Steps to Word Power: Programmed Learning Without a Machine. Arco, 1976.

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