"Van der Grinten projection."
Relief shown by shading and spot heights. Depth shown by gradient tints.
"Supplement to National geographic, November 1975, page 584A, vol. 148, no. 5: The political & physical world."
Insets: North Polar region.--South Polar region.--Language groups.--Religions.--Population density.--Time zones.
"The physical world, 1:48,140,000" including maps of North Polar region, South Polar region, currents, winds, food production and vegetation, and earth's crust on verso.
Accompanied by: Index to map of the world. 22 p.