[Spanish scientific expeditions in the 19th and 20th centuries in the archives of the National Museum of Natural Sciences].
Maldonado Polo
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D001109:Archives / Q000266:history; D005101:Expeditions / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D012106:Research / Q000266:history; D012586:Science / Q000266:history; D013030:Spain / Q000208:ethnology