Hippocampus Institute. (2014). Biological Resonance.
Cita Chicago (17th ed.)Hippocampus Institute. Biological Resonance. www.hippocampusinsitute.net, 2014.
Cita MLA (8th ed.)Hippocampus Institute. Biological Resonance. 2014.
Atenció: Aquestes cites poden no estar 100% correctes.