Cita APA (7a ed.)

Lassen, K. (1970). Diurnal variation of auroral frequency over Greenland 1963-66: IQSY. Det Danske Meteorologiske Institut.

Cita Chicago Style (17a ed.)

Lassen, K. Diurnal Variation of Auroral Frequency over Greenland 1963-66: IQSY. Charlottenlund: Det Danske Meteorologiske Institut, 1970.

Cita MLA (9a ed.)

Lassen, K. Diurnal Variation of Auroral Frequency over Greenland 1963-66: IQSY. Det Danske Meteorologiske Institut, 1970.