Описание на библ. документ: Based on doctoral thesis--U.C.B., 1994.
Физически характеристики: 1 online resource (xii, 274 pages) : illustrations, maps.
Библиография: Includes bibliographical references (pages 252-267) and index.
ISBN: 0300082274
9780300082272
9780300127614
0300127618