APA (7th ed.) Citation

Campbell, A. B., Coghill, W. H., & Holmes, O. W., Jr. (1928). Determination of flakiness of ores. [publisher not identified].

Chicago Style (17th ed.) Citation

Campbell, A. B., Will H. Coghill, and Oliver Wendell Holmes, Jr. Determination of Flakiness of Ores. Washington, D.C.: [publisher not identified], 1928.

MLA (9th ed.) Citation

Campbell, A. B., et al. Determination of Flakiness of Ores. [publisher not identified], 1928.