Close up of large douglas fir trees

Chicago citation style
Anderson, David. Close up of large douglas fir trees. 1980-04. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/mshchem/id/18. (Accessed June 21, 2018.)
APA citation style
Anderson, David, (1980-04) Close up of large douglas fir trees. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/mshchem/id/18
MLA citation style
Anderson, David. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/mshchem/id/18>.
Note: These citations are programmatically generated and may be incomplete.