Katherine Johnson. (2020, February 27). Retrieved September 3, 2025, from http://www.essayworld.com/essays/Katherine-Johnson/107224
"Katherine Johnson." Essayworld.com. Essayworld.com, 27 Feb. 2020. Web. 3 Sep. 2025. <http://www.essayworld.com/essays/Katherine-Johnson/107224>
"Katherine Johnson." Essayworld.com. February 27, 2020. Accessed September 3, 2025. http://www.essayworld.com/essays/Katherine-Johnson/107224.
"Katherine Johnson." Essayworld.com. February 27, 2020. Accessed September 3, 2025. http://www.essayworld.com/essays/Katherine-Johnson/107224.