Squires, G. L. (1968). Practical physics. McGraw-Hill.
Cita Chicago (17th ed.)Squires, Gordon Leslie. Practical Physics. New York: McGraw-Hill, 1968.
Cita MLA (9th ed.)Squires, Gordon Leslie. Practical Physics. McGraw-Hill, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.