Steffen, K. G. (1965). High energy. Inter-Science Publishing.
Cita Chicago (17th ed.)Steffen, Klaus G. High Energy. New York: Inter-Science Publishing, 1965.
Cita MLA (9th ed.)Steffen, Klaus G. High Energy. Inter-Science Publishing, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.