Bathymetry of north-east Atlantic, Biscay and Iberian Abyssal Plains /
Linton, R. H. W.
Experimental Cartography Unit.
[London] : Experimental Cartography Unit,
1978.
Relief and depths shown by contours and gradient tints.
"Chart no. 1."
Includes text and diagr. of "Experimental design."
"Decca navigation lattice" on verso.