Jefimenko, O. D. (1992). Causality electromagnetic induction and gravitation: A different approach to the theory of electromagnetic and gravitational fields. Electret Scientific Company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)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.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Jefimenko, Oleg D. Causality Electromagnetic Induction and Gravitation: A Different Approach to the Theory of Electromagnetic and Gravitational Fields. Electret Scientific Company, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.