MLA

Wolff, Helen, 1906-1994. "Die Wiederkehr von Lou Andreas- Salomé," poem, drafts, holograph and typescript carbon, corrected. Box 74, folder 2090. 1963 Jan. https://collections.library.yale.edu/catalog/17269632.

APA, 6th edition

Wolff, Helen, 1906-1994. (["Box 74, folder 2090"])(1963 Jan)["Die Wiederkehr von Lou Andreas- Salomé," poem, drafts, holograph and typescript carbon, corrected]. https://collections.library.yale.edu/catalog/17269632.