Cita APA (7th ed.)

Yambot, M., Mendenilla, A., Valmoria, N., Ramos, H., & Garcia, A. (1999). Negative ion beam focusing in a plasma sputter-type negative ion source. Science Diliman.

Cita Chicago (17th ed.)

Yambot, Miguel, Alexander Mendenilla, Nico Valmoria, Henry Ramos, i Alipio Garcia. "Negative Ion Beam Focusing in a Plasma Sputter-type Negative Ion Source." Science Diliman 1999.

Cita MLA (9th ed.)

Yambot, Miguel, et al. "Negative Ion Beam Focusing in a Plasma Sputter-type Negative Ion Source." Science Diliman, 1999.