"Brooksa, Góry (Stany Zjednoczone)" . . "Brooks Range." . . "Entdeckungsreise." . . "Alaska (États-Unis)" . . "Alaska" . . "Alaska." . "1929-1939" . . . . "Brooks Range (Alaska)" . . "Discoveries in geography." . . . "Records Marshll's trips by foot, boat and dogsled into wilderness areas north of the Arctic Circle in the 1930's." . . "Alaska wilderness : exploring the Central Brooks Range" . "Alaska wilderness : exploring the Central Brooks Range"@en . . "Alaska wilderness exploring the Central Brooks Range" . . . . . . "Erlebnisbericht" . . . . "Alaska wilderness exploring the central brooks range.Ed.,with introd.by george marshall.Foreword by A.Starker Leopold.2d ed" . . . . . . . . . . "Alaska wilderness : Exploring the Central Brooks Range" . . . . . . "Alaska wilderness; exploring the Central Brooks Range" . . . . . . "Alaska wilderness : exploring the Central Brooks Range. Ed. with introd. Foreword by A. Starker Leopold" . . "USA." . .