Engineer's valuing assistant
Subtitle: being a practical treatise on the valuation of collieries and other mines with rules, formulae, and examples; also a set of valuation tables
Contributors: Gray, Peter, 1807?-1887
Edition: 2d ed.
Publisher: Longmans, Green
Published: 1905
Place of publication: London
Language: eng
Number of pages: 185
Subjects: Mine valuation