Cite

"Sonata in F Major (for Violin and Piano) - Mozart," Second Series Duet, watercolor on paper

MLA

Stieglitz, Alfred, 1864-1946. "Sonata in F Major (for Violin and Piano) - Mozart," Second Series Duet, watercolor on paper. Box 159, folder 2918. 1907. https://collections.library.yale.edu/catalog/2002429.

APA, 6th edition

Stieglitz, Alfred, 1864-1946. (["Box 159, folder 2918"])(1907)["Sonata in F Major (for Violin and Piano) - Mozart," Second Series Duet, watercolor on paper]. https://collections.library.yale.edu/catalog/2002429.