Cite

Sheet (blue paper) with note: “Birds 71 72 / Susan Howe / Birds 71-72 / Gardens 72-73?”

MLA

Howe, Susan, 1937-. Sheet (blue paper) with note: “Birds 71 72 / Susan Howe / Birds 71-72 / Gardens 72-73?”. 55 (Broadside). 1971-1972. https://collections.library.yale.edu/catalog/16867315.

APA, 6th edition

Howe, Susan, 1937-. (["55 (Broadside)"])(1971-1972)[Sheet (blue paper) with note: “Birds 71 72 / Susan Howe / Birds 71-72 / Gardens 72-73?”]. https://collections.library.yale.edu/catalog/16867315.