Analysis of information sources in references of the Wikipedia article "Võ Nguyên Giáp" in English language version.
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: CS1 maint: archived copy as title (link){{cite web}}
: CS1 maint: archived copy as title (link) of a classified analysis by a National Security Agency historian, Robert J. Hanyok, "Skunks, Bogies, Silent Hounds, and the Flying Fish: The Gulf of Tonkin Mystery, 2–4 August 1964", Cryptologic Quarterly, Winter 2000/Spring 2001 Edition (Vol. 19, No. 4 / Vol. 20, No. 1), pp. 1–55.{{cite web}}
: CS1 maint: archived copy as title (link){{cite web}}
: CS1 maint: archived copy as title (link) of a classified analysis by a National Security Agency historian, Robert J. Hanyok, "Skunks, Bogies, Silent Hounds, and the Flying Fish: The Gulf of Tonkin Mystery, 2–4 August 1964", Cryptologic Quarterly, Winter 2000/Spring 2001 Edition (Vol. 19, No. 4 / Vol. 20, No. 1), pp. 1–55.