Cite

Notebooks, autograph manuscript, 2 volumes, notebooks kept during his trip abroad in 1878 and used in the preparation of the book, includes photocopies of the notebooks' pages

MLA

Clemens, Samuel Langhorne, 1835-1910. Notebooks, autograph manuscript, 2 volumes, notebooks kept during his trip abroad in 1878 and used in the preparation of the book, includes photocopies of the notebooks' pages. Box 15. 1878. https://collections.library.yale.edu/catalog/15243601.

APA, 6th edition

Clemens, Samuel Langhorne, 1835-1910. (["Box 15"])(1878)[Notebooks, autograph manuscript, 2 volumes, notebooks kept during his trip abroad in 1878 and used in the preparation of the book, includes photocopies of the notebooks' pages]. https://collections.library.yale.edu/catalog/15243601.