@Misc{BMDB20200022589, title = "Le Sahara Occidental : D\textquotesingle apr\'{e}s Trois Pelerins de L\textquotesingle Adrar", publisher = "Alger : Imprimerie A Jourdan", editor = "Imprimerie A Jourdan", URL = "https://bibliotecavirtual.defensa.gob.es/BVMDefensa/es/consulta/registro.do?id=83670", year = "1880", }