Chicago
“Helms 3.” In Highpoint Editions: A History & Catalogue, 2001–2021, by Dennis Jon, Jennifer L. Roberts, and Jill Ahlberg Yohe.
Minneapolis: Minneapolis Institute of Art, 2020. /helms/helms-3/.
MLA
“Helms 3.” Highpoint Editions: A History & Catalogue, 2001–2021, by
Dennis Jon, et al,
Minneapolis Institute of Art, 2020. /helms/helms-3/. Accessed DD Mon. YYYY.