Geology of Lassen's landscape : the story of the formation of the area as told by the rocks : the geology of Lassen Volcanic national park
1959
Schulz, Paul E. |
Geology
François Matthes and the marks of time : Yosemite and the high sierra
1962
Fryxell, Fritiof |
The Earth
1963
Beiser, Arthur |
Anteproyecto parque nacional Las Brumas, El Salvador : bases para su uso y proteccion
1981
Argumedo Alarcón, Eduardo Antonio |
Carranza Alvarez, Salvador |
Suárez Hurtado, José Roberto |
A guide to the national parks : their landscape and geology
1968
Matthews III, William H. |
The mountains
1962
Milne, Lorus Johnson |
Milne, Margery Joan Greene |