"Pasteur -- The Famous French Chemist, One of the World's Practical Benefactors."
MLA
Hansen, Bert, 1944-. "Pasteur -- The Famous French Chemist, One of the World's Practical Benefactors.". Box 13, folder 7. 1895 November. https://collections.library.yale.edu/catalog/32327015.
APA, 6th edition
Hansen, Bert, 1944-. (["Box 13, folder 7"])(1895 November)["Pasteur -- The Famous French Chemist, One of the World's Practical Benefactors."]. https://collections.library.yale.edu/catalog/32327015.