Fourth siege of Gibraltar (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Fourth siege of Gibraltar" in English language version.

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6^th place

6^th place

archive.org

Sayer 1865, p. 25. Sayer, Frederick (1865). The History of Gibraltar and of its Political Relation to Events in Europe. Chapman and Hall.
Sayer 1865, p. 26. Sayer, Frederick (1865). The History of Gibraltar and of its Political Relation to Events in Europe. Chapman and Hall.