Elements of optical mineralogy : an introduction to microscopic petrography - Winchell, Alexander Newton; Winchell, N. H. (New York, J. Wiley & sons, inc.; London, Chapman & Hall, limited, 1931)
pt. I. Principles and methods.
First and second editions by Newton H. Winchell and Alexander N. Winchell.
Four folded diagrams in pocket.
Keywords: Optical mineralogy