North American Vexillological Association. NAVA newsletter. North American Vexillological Association.
Chicagoスタイル(17版)引用形式North American Vexillological Association. NAVA Newsletter. [Washington, D. C.]: North American Vexillological Association.
MLA(8版)引用形式North American Vexillological Association. NAVA Newsletter. North American Vexillological Association.
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