Viapori
Subtitle: merilinnoitus ensimmäisessä maailmansodassa 1914-1918
By: Markus Manninen
Publisher: Sotamuseo
Published: 2000
Place of publication: [Helsinki]
Language: fin
Number of pages: 127
Subjects: World War, 1914-1918; Fortification; Military History
Notes: Includes bibliographical references (p. 120-121).

Summary in English.