Southern end of the Petaluma River at sunset, Petaluma, California, about 1950

Chicago citation style
Southern end of the Petaluma River at sunset, Petaluma, California, about 1950. 1950. Retrieved from the Digital Public Library of America, http://heritage.sonomalibrary.org/cdm/ref/collection/p15763coll2/id/22442. (Accessed December 13, 2018.)
APA citation style
(1950) Southern end of the Petaluma River at sunset, Petaluma, California, about 1950. Retrieved from the Digital Public Library of America, http://heritage.sonomalibrary.org/cdm/ref/collection/p15763coll2/id/22442
MLA citation style
Retrieved from the Digital Public Library of America <http://heritage.sonomalibrary.org/cdm/ref/collection/p15763coll2/id/22442>.
Note: These citations are programmatically generated and may be incomplete.