Cite

[Nursery rhymes from unknown book]

MLA

Newell, Peter, 1862-1924. [Nursery rhymes from unknown book]. Box 19, folder 445. n.d.. https://collections.library.yale.edu/catalog/10034053.

APA, 6th edition

Newell, Peter, 1862-1924. (["Box 19, folder 445"])(n.d.)[[Nursery rhymes from unknown book]]. https://collections.library.yale.edu/catalog/10034053.