Keppel, L. O. (1930). An era of martyrs. Catholic Truth Society.
Chicago Style (17th ed.) CitationKeppel, Leopoldina Olivia. An Era of Martyrs. London: Catholic Truth Society, 1930.
MLA (8th ed.) CitationKeppel, Leopoldina Olivia. An Era of Martyrs. Catholic Truth Society, 1930.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.