MLA

Bell, Vanessa, 1879-1961, illustrato, Woolf, Virginia, 1882-1941. Kew gardens. 1919. https://collections.library.yale.edu/catalog/2014010.

APA, 6th edition

Bell, Vanessa, 1879-1961, illustrato, & Woolf, Virginia, 1882-1941. (1919)[Kew gardens]. https://collections.library.yale.edu/catalog/2014010.