The first, 1944, geological exploration of the upper amazon valley in Peru, Valleys of the upper rio Madre de Dios, upper rio Urubamba, Fitzcarrald pass, rio Mishagua and upper rio Ucayali
Oppenheim, Victor
The first, 1944, geological exploration of the upper amazon valley in Peru, Valleys of the upper rio Madre de Dios, upper rio Urubamba, Fitzcarrald pass, rio Mishagua and upper rio Ucayali
bibliogr. p. 93-94
Géomorphologie
Hydrologie surface
exploration
Pérou
The first, 1944, geological exploration of the upper amazon valley in Peru, Valleys of the upper rio Madre de Dios, upper rio Urubamba, Fitzcarrald pass, rio Mishagua and upper rio Ucayali
bibliogr. p. 93-94
Géomorphologie
Hydrologie surface
exploration
Pérou