Search Results       Your search for [author]Landsberg, Helmut Erich, 1906 returned 1 record.           Geophysics and warfare. by Landsberg, Helmut Erich, 1906; Washington: Research and Development Coordinating Committee on General Sciences, 1954. Subject: Geophysics; Military art and science; Strategic materials.          Add to Book Cart Relevance: 31.39%