Author: Kraatz-Koschlau, K. von, & Hackman, V., 1896.:
Title: Der Eläolithsyenit der Serra de Monchique, seine Gang- und Contactgesteine.
Description: *Tschermak's Miner. Petrogr. Mitt., 16(3/4): pp. 197-307, 1 map, 5 microphotos on 1 double-page plate, refs. Offprint, orig. wrs. Spine neatly mended.

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