Helmreich, Ernst Christian. The diplomacy of the Balkan wars, 1912-1913 / Ernst Christian Helmreich. - New York : Russell & Russell, c1966 [Reprinted 1969]. - xiv, 523 p. ; 23 cm. Bibliography: p. [471]-495. and index. Subjects--Geographic Terms: Balkan Peninsula--History--War of 1912-1913. Dewey Class. No.: 949.6 / HED 1969