Cita APA (7a ed.)
Brekke, A., & Egeland, A. (1983). The northern light: From mythology to space research. Springer.
Cita Chicago Style (17a ed.)
Brekke, Asgeir, y Alv Egeland. The Northern Light: From Mythology to Space Research. Berlin, Heidelberg, New York, Tokyo: Springer, 1983.
Cita MLA (9a ed.)
Brekke, Asgeir, y Alv Egeland. The Northern Light: From Mythology to Space Research. Springer, 1983.
Precaución: Estas citas no son 100% exactas.