Cita APA (7a ed.)

Jorgensen, T. S., Friis-Christensen, E., & Wilhjelm, J. (1972). Interplanetary magnetic field direction and high latitude ionospheric currents. Det Danske Meteorologiske Institut.

Cita Chicago Style (17a ed.)

Jorgensen, T. S., E. Friis-Christensen, y J. Wilhjelm. Interplanetary Magnetic Field Direction and High Latitude Ionospheric Currents. Charlottenlund: Det Danske Meteorologiske Institut, 1972.

Cita MLA (9a ed.)

Jorgensen, T. S., et al. Interplanetary Magnetic Field Direction and High Latitude Ionospheric Currents. Det Danske Meteorologiske Institut, 1972.