Guidebooks to the geology of Maryland

Chicago citation style
Guidebooks to the geology of Maryland. 1950-. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001663313. (Accessed November 15, 2018.)
APA citation style
(1950-) Guidebooks to the geology of Maryland. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001663313
MLA citation style
Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/001663313>.
Note: These citations are programmatically generated and may be incomplete.