MLA

Knaust, et al. Trace Fossils As Indicators of Sedimentary Environments. Elsevier, 2012.

APA

Knaust, K., Bromley, R. G, Bromley, R. Granville, Knaust, D., Bromley, R., & Knaust, R. G. (2012). Trace Fossils as Indicators of Sedimentary Environments. Elsevier.

Chicago

Knaust, Richard G Bromley, Richard Granville Bromley, Dirk Knaust, Richard Bromley, and Richard G Knaust. Trace Fossils As Indicators of Sedimentary Environments. : Elsevier, 2012.