Cite

"The Flood Catastrophe."

MLA

Hansen, Bert, 1944-. "The Flood Catastrophe.". folder oversize 7. 1874 May 18. https://collections.library.yale.edu/catalog/33220092.

APA, 6th edition

Hansen, Bert, 1944-. (["folder oversize 7"])(1874 May 18)["The Flood Catastrophe."]. https://collections.library.yale.edu/catalog/33220092.