Carel Mondriaan papers, 1870-1956 (bulk 1937-1946).
MLA
Mondriaan, Carel, 1880-1956. Carel Mondriaan papers, 1870-1956 (bulk 1937-1946).. https://collections.library.yale.edu/catalog/2040377.
APA, 6th edition
Mondriaan, Carel, 1880-1956. [Carel Mondriaan papers, 1870-1956 (bulk 1937-1946).]. https://collections.library.yale.edu/catalog/2040377.