APA ציטוט

Kirk, S. A., Karnes, M. B., Graham, R., & Sloan, W. (1958). Early education of the mentally retarded: An experimental study. University of Illinois Press.

Chicago Style (17th ed.) Citation

Kirk, Samuel A., Merle B. Karnes, Ray Graham, and William Sloan. Early Education of the Mentally Retarded: An Experimental Study. Urbana: University of Illinois Press, 1958.

ציטוט MLA

Kirk, Samuel A., et al. Early Education of the Mentally Retarded: An Experimental Study. University of Illinois Press, 1958.