1. Magnetic map : California, southwest of Santa Rosa Island Author/Creator: National Ocean Survey Publication/Creation: Washington, D.C. : U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Ocean Survey, 1973 Format: Map Access & Availability: Loading
2. Magnetic map : North Pacific Ocean Author/Creator: United States. National Oceanic and Atmospheric Administration Publication/Creation: Washington, D.C. : U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Ocean Survey, 1973 Format: Map Access & Availability: Loading