Cite

"The Manufacture of Mege Oleomargarine and Oleomargarine Butter."

MLA

Hansen, Bert, 1944-. "The Manufacture of Mege Oleomargarine and Oleomargarine Butter.". Box 12, folder 17. 1880 April 24. https://collections.library.yale.edu/catalog/32331957.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 12, folder 17"])(1880 April 24)["The Manufacture of Mege Oleomargarine and Oleomargarine Butter."]. https://collections.library.yale.edu/catalog/32331957.