APA Style Citation

Gertrude B. Elion Quotes. (n.d.). BrainyQuote.com. Retrieved July 21, 2019, from BrainyQuote.com Web site: https://www.brainyquote.com/authors/gertrude_b_elion

Chicago Style Citation

Gertrude B. Elion Quotes. BrainyQuote.com, BrainyMedia Inc, 2019. https://www.brainyquote.com/authors/gertrude_b_elion, accessed July 21, 2019.

MLA Style Citation

"Gertrude B. Elion Quotes." BrainyQuote.com. BrainyMedia Inc, 2019. 21 July 2019. https://www.brainyquote.com/authors/gertrude_b_elion