APA (7th ed.) Citation

Geological Survey (U.S.), Bradbury, J. P., & Krebs, W. N. (1995). The Diatom genus Actinocyclus in the western United States. U.S. GPO.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), J. Platt Bradbury, and William N. Krebs. The Diatom Genus Actinocyclus in the Western United States. Washington, D.C.: U.S. GPO, 1995.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. The Diatom Genus Actinocyclus in the Western United States. U.S. GPO, 1995.