General chart of the whole group of the Åland Isles, in the mouth of the Gulf of Bothnia; shewing the nature of the passage from Sweden to Finland; also the circuitous route performed by the author [i.e. Edward Daniel Clarke] upon the Ice of the Frozen Sea after returning from the Isle of Kumlinge to the Bomarsund /
Clarke, Edward Daniel,1769-1822.
Mutlow, H.
[London : Printed for T. Cadell,
1823]
In: Travels in Various Countries of Europe, Asia and Africa. By Edward Daniel Clarke Part the third, Scandinavia, section the second. p. 310.