Army's "Big Bertha" Cameras Map Huge Areas

Title (Dublin Core): Army's "Big Bertha" Cameras Map Huge Areas
Subject (Dublin Core): en Technology; en Reconnaisance
Article Title and/or Image Caption (Dublin Core): Army's "Big Bertha" Cameras Map Huge Areas
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): World War II
Date Issued (Dublin Core): 1941-01
Is Part Of (Dublin Core): Popular Mechanics, v. 75, n. 1, 1941
pages (Bibliographic Ontology): 45
Rights (Dublin Core): Public Domain (Google digitized)
Source (Dublin Core): Google books
References (Dublin Core): Big Bertha; Fairchild K-20
Archived by (Dublin Core): Enrico Saonara; Alberto Bordignon (Supervisor)
Spatial Coverage (Dublin Core): United States of America