books.google.ca - This sumptuously illustrated, beautifully written encyclopedia, the best book available on the topic, presents the most up-to-date information about planet Earth in a style and format that will appeal to an extremely wide range of readers. With thousands of photographs, illustrations, diagrams, and maps...http://books.google.ca/books/about/The_encyclopedia_of_Earth.html?id=s-Q9AQAAIAAJ&utm_source=gb-gplus-shareThe encyclopedia of Earth
