"On the Form of the Teeth of Wheels in Spur Gearing" - bound manuscript.
MLA
Gibbs, J. Willard (Josiah Willard), 1839-1903. "On the Form of the Teeth of Wheels in Spur Gearing" - bound manuscript.. Box 4, folder 131. 1863. https://collections.library.yale.edu/catalog/16662400.
APA, 6th edition
Gibbs, J. Willard (Josiah Willard), 1839-1903. (["Box 4, folder 131"])(1863)["On the Form of the Teeth of Wheels in Spur Gearing" - bound manuscript.]. https://collections.library.yale.edu/catalog/16662400.