Cita APA (7a ed.)

Wilhjelm, J., & Friis-Christense, E. (1973). The Igdlorssuit geomagnetic variation anomaly in the rift-fault zone of northern west Greenland. Det Danske Meteorologiske Institut.

Cita Chicago Style (17a ed.)

Wilhjelm, J., y Eigil Friis-Christense. The Igdlorssuit Geomagnetic Variation Anomaly in the Rift-fault Zone of Northern West Greenland. Charlottenlund: Det Danske Meteorologiske Institut, 1973.

Cita MLA (9a ed.)

Wilhjelm, J., y Eigil Friis-Christense. The Igdlorssuit Geomagnetic Variation Anomaly in the Rift-fault Zone of Northern West Greenland. Det Danske Meteorologiske Institut, 1973.