Whiting, J. W. & Relph, R. E.
The Occurrence of Opal at Lightning Ridge and Grawin .with geological notes on County Finch
ISBN: 
Book Number: 65399
Department of Mines, Sydney 196? 4to. stapled wraps. 22pp. 2 b/w maps. Folding map in pocket at rear. Very good, cover toned.
Keywords: opal mining geology
Price: $35.00