MLA

Sweet William of Plymouth. Printed and sold by J. Evans, No. 41, Long-lane, West-Smithfield, London, 0AD. https://collections.library.yale.edu/catalog/17124833.

APA, 6th edition

Sweet William of Plymouth. (0 C.E.). [Poetry, Early works to 1800, Anecdotes, Single sheet verse, Broadside poems]. Printed and sold by J. Evans, No. 41, Long-lane, West-Smithfield, London. https://collections.library.yale.edu/catalog/17124833.