Poisonous gas balloons used by German troops

Title (Dublin Core): Poisonous gas balloons used by German troops
Subject (Dublin Core): en Technology; en Chemical warfare; en Airplanes and Zeppelins
Article Title and/or Image Caption (Dublin Core): Title: BALLOONS CARRY POISONOUS GAS INTO FORTRESS
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): World War I
Date Issued (Dublin Core): 1916-01
Is Part Of (Dublin Core): Popular Mechanics, v. 25, n. 1, 1916
pages (Bibliographic Ontology): 32
Rights (Dublin Core): Public domain (Google digitized)
Source (Dublin Core): Google Books
References (Dublin Core): Petrograd
Archived by (Dublin Core): Iacopo Tonon; Davide Donà (supervisor)
Spatial Coverage (Dublin Core): German Empire