MLA

The Loyal Lovers: or, Carmarthen Tragedy. Printed and sold at Sympson's Warehouse, in Stonecutter-Street, Fleet-Market, 0AD. https://collections.library.yale.edu/catalog/17124807.

APA, 6th edition

The loyal lovers: or, Carmarthen tragedy. (0 C.E.). [Early works to 1800, Single sheet verse, Broadside poems]. Printed and sold at Sympson's Warehouse, in Stonecutter-Street, Fleet-Market. https://collections.library.yale.edu/catalog/17124807.