APA (7th ed.) Citation

Coope, B., & Langford, E. (1977). Industrial minerals directory. Metal Bulletin.

Chicago Style (17th ed.) Citation

Coope, Brian, and Eileen Langford. Industrial Minerals Directory. Worcester Park: Metal Bulletin, 1977.

MLA (9th ed.) Citation

Coope, Brian, and Eileen Langford. Industrial Minerals Directory. Metal Bulletin, 1977.

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