المؤلفون: Portugal., Real Corpo de Engenheiros., Portugal., Royal Corps of Engineers., Eschewge, Barão de, 1777-1855
الإتاحة: http://data.europeana.eu/aggregation/europeana/10501/bib_rnod_270527
المؤلفون: Eschewge, Barão de, 1777-1855, Correia,, José Cândido,, ca 18--
المساهمون: Portugal., Arquivo Militar,., Portugal., Military Archive,
الإتاحة: http://data.europeana.eu/aggregation/europeana/10501/bib_rnod_267779
المؤلفون: Eschewge,, Barão de,, 1777-1855
الإتاحة: http://data.europeana.eu/aggregation/europeana/10501/bib_rnod_270528