Letter from Andrae B. Nordskog to A. H. Koebig, 21 February 1937

Chicago citation style
Nordskog, Andrae B., 1885-1962. Letter from Andrae B. Nordskog to A. H. Koebig, 21 February 1937. 1937-02-21. Retrieved from the Digital Public Library of America, http://digital-library.csun.edu/cdm/ref/collection/WaterWorks/id/432. (Accessed December 10, 2018.)
APA citation style
Nordskog, Andrae B., 1885-1962, (1937-02-21) Letter from Andrae B. Nordskog to A. H. Koebig, 21 February 1937. Retrieved from the Digital Public Library of America, http://digital-library.csun.edu/cdm/ref/collection/WaterWorks/id/432
MLA citation style
Nordskog, Andrae B., 1885-1962. Retrieved from the Digital Public Library of America <http://digital-library.csun.edu/cdm/ref/collection/WaterWorks/id/432>.
Note: These citations are programmatically generated and may be incomplete.