TY  - SER
AU  - Oppenheim,Victor
TI  - 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
KW  - Géomorphologie
KW  - Hydrologie surface
KW  - exploration
KW  - Pérou
KW  - Amazonie
N1  - bibliogr. p. 93-94
ER  -