The preferred citation of documents from this digital edition is as follows:

[Author] to [Recipient], [document date], Papers of Martin Van Buren [digital edition], ed. Mark R. Cheathem et al., [document URL] ([access date]).

Example:

MVB to Andrew Jackson, 27 September 1833, Papers of Martin Van Buren [digital edition], ed. Mark R. Cheathem et al., http://vanburenpapers.org/document-mvb07003 (accessed 21 May 2019).