Bulletins of American paleontology - Columbia University. College of Pharmacy. (Paleontological Research Institution [etc.], 1985)

Bulletins of American paleontology - Columbia University. College of Pharmacy. (Paleontological Research Institution [etc.], 1985)

Diatoms, collected during the expedition of the Vega - Cleve, P. T. (Per Teodor), 1840 -1905 (1883)

Geology and paleontology of the Lee Creek Mine, North Carolina - Ray, Clayton Edward. (Smithsonian Institution Press, 1983)

Geology and paleontology of the Lee Creek Mine, North Carolina - Ray, Clayton Edward. (Smithsonian Institution Press, 1983)

Hedwigia (Verlag und Druck von C. Heinrich, 1867)

Journal de micrographie (Bureau du journal et chez G. Masson, 1879)

Journal de micrographie (Bureau du journal et chez G. Masson, 1879)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 2009)