Braunfeld, P. G. (1969). Stretchers and shrinkers: Book 2 Advanced Topics in Stretching and Shrinking. Harper & Row.
Chicago-referens (17:e uppl.)Braunfeld, Peter G. Stretchers and Shrinkers: Book 2 Advanced Topics in Stretching and Shrinking. New York: Harper & Row, 1969.
MLA-referens (9:e uppl.)Braunfeld, Peter G. Stretchers and Shrinkers: Book 2 Advanced Topics in Stretching and Shrinking. Harper & Row, 1969.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.