For much of the 20th century, scientific contacts between the Soviet Union and western countries were few and far between, and often super- ficial. In earth sciences, ideas and data were slow to cross... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest
everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We
deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15.
ThriftBooks.com. Read more. Spend less.