Republica Socialistă România, harta substanțelor minerale utile : scara 1:1.000.000 = République Socialiste de Roumanie, carte des substances minérales utiles : échelle 1:1.000.000 /
Institutul Geologic (Romania)
Bucharest : Institutul Geologic,
1969.
Also shows related geology.
Title in Romanian, French, and Russian. Accompanying text in Romanian and French back-to-back.
Mines and mineral resources
Geology, Economic