Semi-Precious Stones - A Historical Article on Agate, Amber, Amethyst and Many Other Varieties of Gemstones

Pearls and Pearling Life

Edwin W. Streeter

67,95 kr.

The Classification, Identification and Characteristics of Gemstones - A Collection of Historical Articles on Precious and Semi-Precious Stones

Various

67,95 kr.

Precious and Semi-Precious Stones

Michael Weinstein

67,95 kr.

Semi-Rigid Joints in Structural Steelwork

M. Iványi; Charalambos Baniotopoulos

679,95 kr.

Drought in Arid and Semi-Arid Regions

969,95 kr.

Managing Basin Interdependencies in a Heterogeneous, Highly Utilized and Data Scarce River Basin in Semi-Arid Africa

Jeremiah Kipkulei Kiptala

829,95 kr.