Ballast tanks for submarines

Title (Dublin Core): Ballast tanks for submarines
Subject (Dublin Core): en Technology; en Tanks and Armored Vehicles
Article Title and/or Image Caption (Dublin Core): An Emergency Means for Bringing Damaged Submarines to the Surface
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): World War I
Date Issued (Dublin Core): 1917-05-26
Is Part Of (Dublin Core): Scientific American, v. 116, n. 21, 1917
pages (Bibliographic Ontology): 526
Rights (Dublin Core): Public Domain
Source (Dublin Core): Scientific American
Archived by (Dublin Core): Valerio Galesso; Marco Bortolami (editor)