Missien van den Orégon en reizen naer de Rotsbergen en de bronnen der Colombia, der Athabasca en Sascatshawin, in 1845-46 /

Dutch translation of: Missions de l'Orégon et voyages aux montagnes Rocheuses, which in turn is a translation of the author's Oregon missions and travels over the Rocky Mountains in 1845-46.