Clough Shepard B. (Shepard Bancroft) 1901-1990. European History In A World Perspective / Shepard B. Clough [Et Al.]. - 3rd ed. - Lexington Mass. : Heath [1975] - 2 V. (XVI 1785 P.) : ILL. 24 CM. - 0 . ENG ISBN: 0669855227 (V. 1) . 0669855308 (V. 2)