Citation
"Original photograph, auctioned at Sotheby's in New York on the 11 December 1993, dated 7 November 1967 and signed, from left to right, by Leonov, Nikolayev, Istochnikov, Rozhdestvensky, Beregovoi y Shalatov (Joan Fontcuberta) , P2004.59.2,” Harvard Art Museums collections online, Dec 22, 2024, https://hvrd.art/o/50102.