Author: WERENFELS, A.
Title: Geologische Beschreibung der Lepontinischen Alpen. III. T. Geologische und petrographische Untersuchung des Vispertales.
Description: 1924. Beitr. Geol. Karte Schweiz ES 26; pp. 81-125, 15 fig. 2 col. plts. 1 fold. & col. geol. map 1:25.000. Orig. wrps. margins of cover just alittle worn, otherwise and contents very good, 4to.

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