Solidarność, P. (1985). Magnateria PRL [Seria znaczków podziemnych] . The aristocracy of People's Republic of Poland. Series of unofficial stamps. Poczta Solidarność.
Chicago Style (17th ed.) CitationSolidarność, Poczta. Magnateria PRL [Seria Znaczków Podziemnych] . The Aristocracy of People's Republic of Poland. Series of Unofficial Stamps. Poczta Solidarność, 1985.
MLA (8th ed.) CitationSolidarność, Poczta. Magnateria PRL [Seria Znaczków Podziemnych] . The Aristocracy of People's Republic of Poland. Series of Unofficial Stamps. Poczta Solidarność, 1985.
Warning: These citations may not always be 100% accurate.