Robert E. Lee engineering notebook

Chicago citation style
Lee, Robert E. (Robert Edward), 1807-1870. Robert E. Lee engineering notebook. 1841 - 1842. Retrieved from the Digital Public Library of America, http://digitalcollections.nypl.org/items/107c6e20-9589-0135-df3f-2f1480ba9760. (Accessed November 16, 2018.)
APA citation style
Lee, Robert E. (Robert Edward), 1807-1870, (1841 - 1842) Robert E. Lee engineering notebook. Retrieved from the Digital Public Library of America, http://digitalcollections.nypl.org/items/107c6e20-9589-0135-df3f-2f1480ba9760
MLA citation style
Lee, Robert E. (Robert Edward), 1807-1870. Retrieved from the Digital Public Library of America <http://digitalcollections.nypl.org/items/107c6e20-9589-0135-df3f-2f1480ba9760>.
Note: These citations are programmatically generated and may be incomplete.