Spon, J. S. d. History of the Barons de Spon, Comtes zu Forbach, and allied families (1978) (Lithogr.). Priv. produced.
Chicagoスタイル(17版)引用形式Spon, John Seymour de. History of the Barons De Spon, Comtes Zu Forbach, and Allied Families (1978). Lithogr. London: Priv. produced.
MLA(8版)引用形式Spon, John Seymour de. History of the Barons De Spon, Comtes Zu Forbach, and Allied Families (1978). Lithogr. Priv. produced.
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