William Beckford (1709-1770): Portrait (in oil) by Marcellus Laroon
MLA
Beckford, William, 1760-1844. William Beckford (1709-1770): Portrait (in oil) by Marcellus Laroon. art, folder 116a. n.d.. https://collections.library.yale.edu/catalog/2026340.
APA, 6th edition
Beckford, William, 1760-1844. (["art, folder 116a"])(n.d.)[William Beckford (1709-1770): Portrait (in oil) by Marcellus Laroon]. https://collections.library.yale.edu/catalog/2026340.