Braunfeld, P. G. (1969). Stretchers and shrinkers: Book 2 Advanced Topics in Stretching and Shrinking. Harper & Row.
Cita Chicago (17th ed.)Braunfeld, Peter G. Stretchers and Shrinkers: Book 2 Advanced Topics in Stretching and Shrinking. New York: Harper & Row, 1969.
Cita MLA (9th ed.)Braunfeld, Peter G. Stretchers and Shrinkers: Book 2 Advanced Topics in Stretching and Shrinking. Harper & Row, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.