MLA

Seago, John, -1810, publisher. J. Seago, print-seller, High Street St. Giles's near Tottenham Court Road, London. [between 1770 and 1780?]. https://collections.library.yale.edu/catalog/33434197.

APA, 6th edition

Seago, John, -1810, publisher. ([between 1770 and 1780?])[J. Seago, print-seller, High Street St. Giles's near Tottenham Court Road, London]. https://collections.library.yale.edu/catalog/33434197.