Erdélyi István
Budapest
Móra Könyvkiadó
1977
Francis, Peter
[Budapest]
1981
Manta, Ion
Bucureşti
Albatros
1985
Tazieff, Haroun
Editura Ştiinţifică
1991
Rittmann, Alfred
Editura Tehnică
1967
Sencu, Vasile
Sport-Turism
Rădulescu, Dan (geolog)
1976
Paris
Fernand Nathan
1974
[Paris]
Payard
1980
1963
Le livre de poche
2253012149
Manilici, Vasile