(2003). Briefmarken-Katalog: 1843 - 2003. Philotax.
Chicago Style (17th ed.) CitationBriefmarken-Katalog: 1843 - 2003. Henstedt-Ulzburg ; [Bischbrunn]: Philotax, 2003.
MLA (9th ed.) CitationBriefmarken-Katalog: 1843 - 2003. Philotax, 2003.
Warning: These citations may not always be 100% accurate.