Letter to Tom Marioni from David Smith (Invisible Painting and Sculpture)

Chicago citation style
Smith, David R. Letter to Tom Marioni from David Smith (Invisible Painting and Sculpture). 1969. Retrieved from the Digital Public Library of America, https://webapps.cspace.berkeley.edu/bampfa/search/search/?idnumber=1995.46.429.76&displayType=full&maxresults=1&start=1. (Accessed December 18, 2018.)
APA citation style
Smith, David R, (1969) Letter to Tom Marioni from David Smith (Invisible Painting and Sculpture). Retrieved from the Digital Public Library of America, https://webapps.cspace.berkeley.edu/bampfa/search/search/?idnumber=1995.46.429.76&displayType=full&maxresults=1&start=1
MLA citation style
Smith, David R. Retrieved from the Digital Public Library of America <https://webapps.cspace.berkeley.edu/bampfa/search/search/?idnumber=1995.46.429.76&displayType=full&maxresults=1&start=1>.
Note: These citations are programmatically generated and may be incomplete.