Cita APA (7th ed.)

Penas, N. P. (1961). Acceleration and extraction voltages for a particle accelerator.

Cita Chicago (17th ed.)

Penas, Nazario P. Acceleration and Extraction Voltages for a Particle Accelerator. 1961.

Cita MLA (9th ed.)

Penas, Nazario P. Acceleration and Extraction Voltages for a Particle Accelerator. 1961.

Atenció: Aquestes cites poden no estar 100% correctes.