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Geology
Geology
Study of the composition, structure, physical properties, and history of Earth's components, and the processes by which they are shaped
Finnish Heritage Agency
Public Library Pencho Slaveykov, Varna
Octavian Goga Cluj County Library
de Ion Simionescu; Ion Th. Simionescu, (geolog, paleontolog) (1873-1944)
Octavian Goga Cluj County Library
de Ion Simionescu; Ion Simionescu, (geolog și paleontolog) (1873-1944)
Octavian Goga Cluj County Library
Octavian Goga Cluj County Library
de I. Simionescu; Ion Th. Simionescu, (geolog, paleontolog) (1873-1944) [autor]
Octavian Goga Cluj County Library
de I. Simionescu; Ion Th. Simionescu, (geolog, paleontolog) (1873-1944)
Octavian Goga Cluj County Library
dr. Bernady György; György Bernády (farmacist, jurist, om politic) (1864-1938)
Octavian Goga Cluj County Library
Internațional Congress of Soil Science
Octavian Goga Cluj County Library
dressée par la Direction Générale de la Mise en Valeur des Biens de l'Etat et de l'Energie; Constantin Lazu, (inginer) [redactor]; Direction Générale de la Mise en Valeur des Biens de l'Etat et de l'Energie
Octavian Goga Cluj County Library