Gulf of Aden ... [Outline bathymetric chart automatically plotted by the E.C.U. from the same data used for their layer and anaglyph maps of this area, but with scale, projection and contour interval changed]
Experimental Cartography Unit.
[London : E.C.U., Royal College of Art,
1971]
Verso: Automatically generated contours of Bouger Anomaly Values. [Area unknown]