Our Seabed Frontier: Challengs and Choices. National Research Council (U.S.). Committee on Seabed Utilization in the Exclusive Economic Zone.; National Research Council (U.S.). Marine Board. Washington, DC: National Academy Press, 1989.

Our Seabed Frontier: Challengs and Choices. National Research Council (U.S.). Committee on Seabed Utilization in the Exclusive Economic Zone.; National Research Council (U.S.). Marine Board. Washington, DC: National Academy Press, 1989.