Catalogue Persistent Identifier
https://nla.gov.au/nla.cat-vn4461856
APA Citation
United States. National Imagery and Mapping Agency. (2001). Magnetic variation [North and South Poles], epoch 2000.
MLA Citation
United States. National Imagery and Mapping Agency. Magnetic variation [North and South Poles], epoch 2000 [electronic resource] / prepared and published by the National Imagery and Mapping Agency 2001
Australian/Harvard Citation
United States. National Imagery and Mapping Agency. 2001, Magnetic variation [North and South Poles], epoch 2000 [electronic resource] / prepared and published by the National Imagery and Mapping Agency
Wikipedia Citation
{{Citation | title=Magnetic variation [North and South Poles], epoch 2000 [electronic resource] / prepared and published by the National Imagery and Mapping Agency | author1=United States. National Imagery and Mapping Agency | publisher=National Imagery and Mapping Agency | language=English }}