有声读物: Carpenter's Geographical Reader: North America

The purpose of this book is to give to its readers a living knowledge of some of the wonders of the country and continent in which they live. Upon a personally conducted tour they are taken by the author through the most characteristic parts of the North American continent. They travel through the United States, British America, Mexico, and Central America, studying the most interesting features of life and work among the people of each country, learning how they are governed, and what they do in order to live. Much information is also given concerning the natural resources and the physical features of the countries visited. (From the preface)