This book explains the changing philosophies and permutations in research and management of South Africa''s national parks during the twentieth century.
This book explains the changing philosophies and permutations in research and management of South Africa''s national parks during the twentieth century.
This book explores a technology that transformed airplanes into safe, practical tools of war and a means of transportation during the first half of the twentieth century.
This book explores a technology that transformed airplanes into safe, practical tools of war and a means of transportation during the first half of the twentieth century.