Minningh, L. D. (1979). Petrological and structural investigations of the Sparone area in the Orco Valley: (Southern Sesialanzo Border Zone, Western Italian Alps). Dutch Efficiency Bureau.
Chicago-Zitierstil (17. Ausg.)Minningh, Leonard D. Petrological and Structural Investigations of the Sparone Area in the Orco Valley: (Southern Sesialanzo Border Zone, Western Italian Alps). Pijnacker: Dutch Efficiency Bureau, 1979.
MLA-Zitierstil (9. Ausg.)Minningh, Leonard D. Petrological and Structural Investigations of the Sparone Area in the Orco Valley: (Southern Sesialanzo Border Zone, Western Italian Alps). Dutch Efficiency Bureau, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.