Author: NIGGLI, P. & W. STAUB
Title: Neue Beobachtungen aus dem Grenzgebiet zwischen Gotthard- und Aarmassiv.
Description: 1914. Reprint Beitr. Geol. Karte Schweiz NF 45; pp. 43-77, 13 fig./phot. 1 pl h.t.t. with geol. sections folding-out. Orig. wrps. with libr. stamp, very good, 4to.

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