Jefimenko, O. D. (1992). Causality electromagnetic induction and gravitation: A different approach to the theory of electromagnetic and gravitational fields. Electret Scientific Company.
Cytowanie według stylu Chicago (wyd. 17)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.
Cytowanie według stylu MLA (wyd. 9)Jefimenko, Oleg D. Causality Electromagnetic Induction and Gravitation: A Different Approach to the Theory of Electromagnetic and Gravitational Fields. Electret Scientific Company, 1992.
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