APA (7th ed.) Citation

Leith, C. K. (1938). Mineral valuations of the future. [publisher not identified].

Chicago Style (17th ed.) Citation

Leith, C. K. Mineral Valuations of the Future. New York, N. Y.: [publisher not identified], 1938.

MLA (9th ed.) Citation

Leith, C. K. Mineral Valuations of the Future. [publisher not identified], 1938.