J. Tschichold, The new typography, 2006 : t.p. (Richard Hendel)

WWW LC, 15 abril, 2019 : (Hendel, Richard) http://id.loc.gov/authorities/names/n98030880.html

https://www.designstoryworks.com/stories/2014/11/4/rich-hendel-my-first-bookwas-as-honest-a-book-as-ive-ever-designed