APA (7th ed.) Citation

MLI Associates. (1965). Programmed English skills. D.C. Heath and Co..

Chicago Style (17th ed.) Citation

MLI Associates. Programmed English Skills. Boston ; Chicago [etc.]: D.C. Heath and Co., 1965.

MLA (8th ed.) Citation

MLI Associates. Programmed English Skills. D.C. Heath and Co., 1965.

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