W. & A.K. Johnston's "effective" class room maps of Africa : relief & communications.
W. & A.K. Johnston Limited,cartographer.
W. & A.K. Johnston & G.W. Bacon Ltd.,publisher.
Title from head of sheet.
"Modified orthographic projection"--Bottom left hand corner of sheet.
'Copyright 7/58'
Relief shown by gradient tints and spot heights. Depths shown by bathymetric tints.