Composite theoretical division of the seabed.

Bibliographic Details
Corporate Authors:	United States. Central Intelligence Agency, United States. Department of State. Office of the Geographer
Format:	Government Document Map
Language:	English
Published:	[Washington] : [Central Intelligence Agency], [1978]
Subjects:	Territorial waters > Maps. Continental margins > Maps.

Description
Item Description:	Depths shown by gradient tints. North America at center. "Source of data: Office of the Geographer, Department of State." "575812, 4-78." Cartographic material.
Physical Description:	1 map : color ; 75 x 111 cm.