|J.R. Lindbeck, M.W. Williams & R.M. Wygant. Manufacturing Technology. Englewood Cliffs, NY: Prentice-Hall, 1990.|
"In 1970, the newly reorganized Midvale-Heppenstal Corporation began the systematic shutdown of the Nicetown plant; its eulogy was written by Scranton and Licht: 'The last to close of our four nineteenth-century Philadelphia plants, Midvale is soon to be demolished. For the moment, its massive forge hammers are still in place, but they will never again shake the earth with their power. Their silence leaves a bitter emptiness after a century of steel and sweat.'"