Ortar, J. (1967). Fundamentals physics (2nd ed.). John Wiley.
Cita Chicago (17th ed.)Ortar, Jay. Fundamentals Physics. 2nd ed. London: John Wiley, 1967.
Cita MLA (9th ed.)Ortar, Jay. Fundamentals Physics. 2nd ed. John Wiley, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.