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Rocks and mineral deposits.

By Niggli, Paul.
San Francisco : Freeman and Company, 1954 .
xiii, 559 p. il. ; , ING.7109 Ej.1 en Sala de Geociencias. 24 cm.

By Niggli, Paul.
New York : D.Van Nostrand, 1929 .
93 p. ; 25 cm.

By Niggli, Paul.
Basel : Verlag Birkhauser, 1948 .
4 v. : 24 cm.

By Niggli, Paul.
Basel : Verlag, 1945 .
283 p. : 24 cm.

By Niggli, Paul.
Berlín : Verlag von Gebrüder Borntraeger, 1924 .
712 p. : 25 cm.