By Ojeda, Germán..
Madrid Siglo XXI de España Editores 1985 .
xi, 472 p. , Includes index. 21 cm..

[Washington, D.C. European Community Information Service 1963 .
149 v. , Title from caption. | Imprint varies. 28 cm..

Reston, Va. U.S. Geological Survey 1991 .
vi, 197 p. 28 cm..

By Greer, Guy.
New York The Macmillan company 1925 .
xx, 328p. 20 cm..

By Lister, Louis..
New York Twentieth Century Fund 1960 .
495 p. 25 cm..