Petrified elm log, Ginkgo Petrified Forest State Park, April 23, 1938

Chicago citation style
Lindsley, Lawrence Denny, 1878-1975.. Petrified elm log, Ginkgo Petrified Forest State Park, April 23, 1938. 1953. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/ll/id/1080. (Accessed October 20, 2018.)
APA citation style
Lindsley, Lawrence Denny, 1878-1975., (1953) Petrified elm log, Ginkgo Petrified Forest State Park, April 23, 1938. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/ll/id/1080
MLA citation style
Lindsley, Lawrence Denny, 1878-1975.. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/ll/id/1080>.
Note: These citations are programmatically generated and may be incomplete.