Cite

Apparatus for separating gold, and other precious metals

MLA

Kent, Edward N., and inventor. Apparatus for Separating Gold, and Other Precious Metals. J.W. Amerman, Printer, 0AD. https://collections.library.yale.edu/catalog/2015920.

APA, 6th edition

Kent, E. N., & inventor. (0 C.E.). Apparatus for separating gold, and other precious metals [Drawings, Patent drawings, Lithographs]. J.W. Amerman, Printer. https://collections.library.yale.edu/catalog/2015920.