Alexander E. Gates, Ph.D. & David Ritchie

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

Булгаков А. Д. & Моссур П. М. & Тищенко В. Е. (...)

David Fountain & Richard Smith & Tom Payne & Jean Lemieux (...)

Technique and technology of exploration works (1)

Д. Л. Лопатников

Военная география (1)