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.) CitationGeological 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.) CitationGeological Survey (U.S.), et al. The Diatom Genus Actinocyclus in the Western United States. U.S. GPO, 1995.
Warning: These citations may not always be 100% accurate.