Obruchev, V.
Fundamental of Geology : popular outline / V.Obruchev - 2nd ed. - Moscow : Foriegn language ; - 373 p. : dia . : 21cm.
Geology.
551 / OBF
Fundamental of Geology : popular outline / V.Obruchev - 2nd ed. - Moscow : Foriegn language ; - 373 p. : dia . : 21cm.
Geology.
551 / OBF