Cita APA (7a ed.)

Lassen, K. (1987). Distribution of auroral arcs during quiet geomagnetic conditions. Danish Meteorological Institute.

Cita Chicago Style (17a ed.)

Lassen, Knud. Distribution of Auroral Arcs During Quiet Geomagnetic Conditions. Kobenhavn: Danish Meteorological Institute, 1987.

Cita MLA (9a ed.)

Lassen, Knud. Distribution of Auroral Arcs During Quiet Geomagnetic Conditions. Danish Meteorological Institute, 1987.