[Autograph letter 1914 late August-September to Isabel Lachaise]
MLA
Lachaise, Gaston, 1882-1935. [Autograph letter 1914 late August-September to Isabel Lachaise]. Letters to Isabel Lachaise [1914 June-July-late Aug-Sept]. [1914]. https://collections.library.yale.edu/catalog/2054064.
APA, 6th edition
Lachaise, Gaston, 1882-1935. (["Letters to Isabel Lachaise [1914 June-July-late Aug-Sept]"])([1914])[[Autograph letter 1914 late August-September to Isabel Lachaise]]. https://collections.library.yale.edu/catalog/2054064.