Neil Schlager & Joseph E. Trumpey & Arthur V. Evans & Rosser W. Garrison (...)

Paleontology (1)

Alissa A. Henza & Martha O. Withjack & Roy W. Schlische (...)

Geological and geophysical studies of the deep structure of the Earth (1)

Проф. Ф. П. Саваренский

Гидрогеология (1)

Bob Heath

Историческая география (1)