Abbott, A. F. Ordinary level physics (2nd ed.). New Delhi.
Cita Chicago (17th ed.)Abbott, A. F. Ordinary Level Physics. 2nd ed. 1969: New Delhi.
Cita MLA (9th ed.)Abbott, A. F. Ordinary Level Physics. 2nd ed. New Delhi.
Atenció: Aquestes cites poden no estar 100% correctes.