EARTH´S MOST CHALLENGING MYSTERIES
Häftad bok. BAKER BOOK HOUSE, Grand Rapids, Michigan. Second printing uppl. 1972. 403 pages sidor.
Gott skick.
Namnteckning å försättsblad : Nils Ibstedt. 40 pages. Text in english! Något nött häftat omslag!
The origin of Life - The Cause of the Ice Age - Canyons and River Valleys in the Sea Floor - Six.Mile-Deep Ocean Trenches - The Formation of Mountains - Fossil Graveyards in Siberia - Marine Fossils on Mountaintops - and many others.
