Cite

Man's observation [art original].

MLA

Searle, Ronald, 1920-2011, artist. Man's observation [art original].. [not after 2011]. https://collections.library.yale.edu/catalog/17339865.

APA, 6th edition

Searle, Ronald, 1920-2011, artist. ([not after 2011])[Man's observation [art original].]. https://collections.library.yale.edu/catalog/17339865.