The unbroken line :

along the French trenches from Switzerland to the North sea /
by H. Warner Allen, with illustrations and maps.
Bibliographic Details
Main Creator: Allen, H. Warner (Herbert Warner), b. 1881.
Format: Book
Language:English
Published / Created: London : Smith, Elder & co., 1916.
Subjects:
Notes:Physical description: 328 p. : ill., maps (1 fold.) ; 21 cm.