national park system
1Elephants and Savanna Woodland Ecosystems. A Study from Chobe National Park, Botswana , Christina Skarpe
During the nineteenth century, ivory hunting caused a substantial decrease of elephant numbers in southern Africa. Soon after that, populations of many other large and medium-sized herbivores went… 9570.75 руб электронная книга2Magnetosphere-Ionosphere Coupling in the Solar System , Peter Banks M.
Over a half century of exploration of the Earth’s space environment, it has become evident that the interaction between the ionosphere and the magnetosphere plays a dominant role in the evolution… 16879.22 руб электронная книга