Cite

Heukel m, Sigenbeck van

MLA

Marsh, Othniel Charles, 1831-1899. Heukel m, Sigenbeck van. Box 17, folder 654A. undated. https://collections.library.yale.edu/catalog/32560433.

APA, 6th edition

Marsh, Othniel Charles, 1831-1899. (["Box 17, folder 654A"])(undated)[Heukel m, Sigenbeck van]. https://collections.library.yale.edu/catalog/32560433.