APA (7th ed.) Citation

Barbier, C. (1971). The economics of tungsten / by C. Barbier. Metal Bulletin Books.

Chicago Style (17th ed.) Citation

Barbier, C. The Economics of Tungsten / by C. Barbier. Metal Bulletin Books, 1971.

MLA (9th ed.) Citation

Barbier, C. The Economics of Tungsten / by C. Barbier. Metal Bulletin Books, 1971.

Warning: These citations may not always be 100% accurate.