The Encyclopedia Americana, Volume 7Grolier, 1995 - Encyclopedias and dictionaries |
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Page 5
The level of technical mastery over the environment attained by these peoples of the New World was roughly equivalent to that attained by the ancient Mesopotamians and Egyptians some 4,000 years earlier .
The level of technical mastery over the environment attained by these peoples of the New World was roughly equivalent to that attained by the ancient Mesopotamians and Egyptians some 4,000 years earlier .
Page 136
Estimates of the world's coal resources , total as well as those actually mapped and explored , are given in the following table , which is based on studies by Paul Averitt ( see bibliography ) . Uses of Various Coals .
Estimates of the world's coal resources , total as well as those actually mapped and explored , are given in the following table , which is based on studies by Paul Averitt ( see bibliography ) . Uses of Various Coals .
Page 620
As the population of the world has increased , and with it man's capabilities for exploiting and changing the environment , conservation has become increasingly necessary . Unless man plans for the future and ends practices that harm ...
As the population of the world has increased , and with it man's capabilities for exploiting and changing the environment , conservation has become increasingly necessary . Unless man plans for the future and ends practices that harm ...
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Bibliographic information
| Title | The Encyclopedia Americana, Volume 7 The Encyclopedia Americana, Grolier Incorporated, ISBN 0717201260, 9780717201266 |
| Contributor | Grolier Incorporated |
| Publisher | Grolier, 1995 |
| ISBN | 0717201260, 9780717201266 |
| Export Citation | BiBTeX EndNote RefMan |