APA (7th ed.) Citation

Bock, R. E. (1948). Atlas of magnetic declination of Europe for epoch 1944.5. Army Map Service, Corps of Engineers, Dept. of the Army.

Chicago Style (17th ed.) Citation

Bock, Richard Ernst. Atlas of Magnetic Declination of Europe for Epoch 1944.5. Washington: Army Map Service, Corps of Engineers, Dept. of the Army, 1948.

MLA (9th ed.) Citation

Bock, Richard Ernst. Atlas of Magnetic Declination of Europe for Epoch 1944.5. Army Map Service, Corps of Engineers, Dept. of the Army, 1948.