APA (7th ed.) Citation

Griffiths, J., & North, J. (1991). Industrial minerals directory: A world guide to producers and processors (2nd ed.). Metal Bulletin Books.

Chicago Style (17th ed.) Citation

Griffiths, Joyce, and Jayne North. Industrial Minerals Directory: A World Guide to Producers and Processors. 2nd ed. Surrey, [England]: Metal Bulletin Books, 1991.

MLA (9th ed.) Citation

Griffiths, Joyce, and Jayne North. Industrial Minerals Directory: A World Guide to Producers and Processors. 2nd ed. Metal Bulletin Books, 1991.