Die Bodenschätze der Schweiz
By: [von] P. Niggli und F. de Quervain.
Contributors: Quervain, Francis de, 1902- joint author.
Series: Tornister-Bibliothek,; Heft 21
Publisher: E. Rentsch
Published: 1940
Place of publication: Erlenbach-Zurich
Language: ger
Number of pages: 47
Subjects: Mines and mineral resources -- Switzerland.