MLA

Baumgartner, Leona, 1902-1991, Miller/Swift (East Haddam, CT). Leona Baumgartner. https://collections.library.yale.edu/catalog/16787367.

APA, 6th edition

Baumgartner, Leona, 1902-1991, & Miller/Swift (East Haddam, CT). [Leona Baumgartner]. https://collections.library.yale.edu/catalog/16787367.