North America: Its Rivers
North America: Its Rivers (1971) : Explores the distinctive features of the major rivers of the continent, and discusses their contributions to the farming, recreation, transportation and hydroelectric power of North America.
The Lost Forest
Podkarpatská Rus
The River of Life and Death
Antártica: O Continente dos Extremos
The Journey of Man: A Genetic Odyssey
North America: Its Plains and Plateaus