Analysis of information sources in references of the Wikipedia article "1967 in aviation" in English language version.
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: CS1 maint: archived copy as title (link) southpolestation.com Hoshko, John, Jr., Lieutenant, USN, "Night Flight to Antarctica."{{cite web}}
: CS1 maint: archived copy as title (link) southpolestation.com Hoshko, John, Jr., Lieutenant, USN, "Night Flight to Antarctica."