United States. Defense Mapping Agency, United States. Naval Oceanographic Office, & British Geological Survey. (1996). Magnetic variation, epoch 1995.0 (11th ed., July 27, 1996 (Correct through NM 30/96).). The Agency.
Chicago Style (17th ed.) CitationUnited States. Defense Mapping Agency, United States. Naval Oceanographic Office, and British Geological Survey. Magnetic Variation, Epoch 1995.0. 11th ed., July 27, 1996 (Correct through NM 30/96). [Bethesda, Md.]: The Agency, 1996.
MLA (9th ed.) CitationUnited States. Defense Mapping Agency, et al. Magnetic Variation, Epoch 1995.0. 11th ed., July 27, 1996 (Correct through NM 30/96). The Agency, 1996.
Warning: These citations may not always be 100% accurate.