MLA

Seymour, Robert, 1798-1836, printmaker. Grand new method of writing music recomended [sic] to all amateur composers / [graphic]. 1828.. https://collections.library.yale.edu/catalog/15808688.

APA, 6th edition

Seymour, Robert, 1798-1836, printmaker. (1828.)[Grand new method of writing music recomended [sic] to all amateur composers / [graphic]]. https://collections.library.yale.edu/catalog/15808688.