Jefimenko, O. D. (1992). Causality electromagnetic induction and gravitation: A different approach to the theory of electromagnetic and gravitational fields. Electret Scientific Company.
Cita Chicago (17th ed.)Jefimenko, Oleg D. Causality Electromagnetic Induction and Gravitation: A Different Approach to the Theory of Electromagnetic and Gravitational Fields. Star City: Electret Scientific Company, 1992.
Cita MLA (9th ed.)Jefimenko, Oleg D. Causality Electromagnetic Induction and Gravitation: A Different Approach to the Theory of Electromagnetic and Gravitational Fields. Electret Scientific Company, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.