Cite
[Creator not found], (2016). KH-4b: Declassified Satellite Imagery - Series 1 ("Corona"): DS1106-2074DA010. https://isac-idb.uchicago.edu/id/c3a4a7f9-6a95-49c6-99b1-b1959f2acdbf (imagery)
Available from: https://geo.btaa.org/catalog/camel-1018506