Tag Archives: classic work

A Sand County Almanac HD PDF

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A Sand County Almanac is the representative work (first published in 1949) of the father of ecological ethic, Aldo Leopold. It is considered the “Bible of Ecological Thought”, and is called “Natural Literature Trilogy” together with Walden and Silent Spring. The book is accompanied by dozens of original illustrations, vividly presenting the natural feelings of a naturalist. In this book, the author creates a new ethics – land ethic.

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PHP and MySQL: Create – Modify – Reuse HD PDF

As one of the most important tools used for developing web applications, PHP and MySQL have been favored by developers around the world all the time. But how to effectively use PHP and MySQL to perform development became a challenge that programmers have to face. In a sense, PHP and MySQL: Create – Modify – Reuse rose in response to the proper time and conditions (it was written to specially solve this problem).

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