Liddle, Ralph Alexander, 1896-1963.
The geology of Venezuela and Trinidad, by Ralph Alexander Liddle.
Fort Worth, Tex., J. P. MacGowan [c1928]
Bibliography: p. 507-511.
GEO QE251 L54: Presentation copy to Professor Charles Schuchert with his ms. notes.
Geology -- Venezuela.
Geology -- Trinidad.
Physical geography -- Venezuela.
Philadelphia Area Center for History of Science
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