Pachut, J. F. 1., & Cuffrey, R. J. (1999). Stratigraphic and geographic bryozoan abundance gradients in the calcareous shales of the wreford megacyclothem (Lower Permian, Kansas). Lawrence, Kan.: University of Kansas Paleontological Institute.
Chicago Style CitationPachut, Joseph F. 1950-, and Roger J. Cuffrey. Stratigraphic and Geographic Bryozoan Abundance Gradients in the Calcareous Shales of the Wreford Megacyclothem (Lower Permian, Kansas). Lawrence, Kan.: University of Kansas Paleontological Institute, 1999.
MLA CitationPachut, Joseph F. 1950-, and Roger J. Cuffrey. Stratigraphic and Geographic Bryozoan Abundance Gradients in the Calcareous Shales of the Wreford Megacyclothem (Lower Permian, Kansas). Lawrence, Kan.: University of Kansas Paleontological Institute, 1999.