Cite

Holograph manuscript [On insects] (In Series I)

MLA

Thoreau, Henry David, 1817-1862. Holograph manuscript [On insects] (In Series I). Box 2, folder 19. 1851-54. https://collections.library.yale.edu/catalog/2056840.

APA, 6th edition

Thoreau, Henry David, 1817-1862. (["Box 2, folder 19"])(1851-54)[Holograph manuscript [On insects] (In Series I)]. https://collections.library.yale.edu/catalog/2056840.