An elementary course of geology, mineralogy, and physical geography

Chicago citation style
Ansted, D. T. (David Thomas), 1814-1880. An elementary course of geology, mineralogy, and physical geography. 1850. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007936239. (Accessed November 15, 2018.)
APA citation style
Ansted, D. T. (David Thomas), 1814-1880, (1850) An elementary course of geology, mineralogy, and physical geography. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007936239
MLA citation style
Ansted, D. T. (David Thomas), 1814-1880. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/007936239>.
Note: These citations are programmatically generated and may be incomplete.