Four-act play. According to Wikipedia: "Upton Beall Sinclair, Jr. (1878 - 1968), was a prolific American author who wrote over 90 books in many genres and was widely considered to be one of the best investigators advocating socialist views. He achieved co
Four-act play. According to Wikipedia: "Upton Beall Sinclair, Jr. (1878 - 1968), was a prolific American author who wrote over 90 books in many genres and was widely considered to be one of the best investigators advocating socialist views. He achieved co