Cite

Ludlow, Helen N., 6 items

MLA

Pratt, Richard Henry, 1840-1924. Ludlow, Helen N., 6 items. Box 5, folder 174. 1879-80. https://collections.library.yale.edu/catalog/32323677.

APA, 6th edition

Pratt, Richard Henry, 1840-1924. (["Box 5, folder 174"])(1879-80)[Ludlow, Helen N., 6 items]. https://collections.library.yale.edu/catalog/32323677.