Mr. [Henry] Siefert to Elisée Bost
MLA
Mr. [Henry] Siefert to Elisée Bost. 1879. https://collections.library.yale.edu/catalog/17312400.
APA, 6th edition
Mr. [Henry] Siefert to Elisée Bost. (1879). [Correspondence]. https://collections.library.yale.edu/catalog/17312400.