Boggs, W. (1955). The foundations of philately (2.). The Philatelic Foundation.
Chicago Style (17th ed.) CitationBoggs, Winthrop. The Foundations of Philately. 2. México: The Philatelic Foundation, 1955.
MLA citiranjeBoggs, Winthrop. The Foundations of Philately. 2. The Philatelic Foundation, 1955.
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