NIMIGEANU,GEORGE
Bucureşti
Academia Română
1947
POPP,NICOLAE M.
Bibl.Inst.de Cercet.Geogr
CHRISTIE,AGATHA
Paris
Librairie Des Champs-Elysees
KOESTLER,ARTHUR
Calmann-Levy
VERNE,JULES
Hachette
HILT,VIRGIL
Cugetarea-Georgescu Delaf