APA (7th ed.) Citation

Sunderland, R. S. (1689). The Earl of Sunderland's letter to a freind [sic]. [s.n.].

Chicago Style (17th ed.) Citation

Sunderland, Robert Spencer. The Earl of Sunderland's Letter to a Freind [sic]. S.l: [s.n.], 1689.

MLA (9th ed.) Citation

Sunderland, Robert Spencer. The Earl of Sunderland's Letter to a Freind [sic]. [s.n.], 1689.

Warning: These citations may not always be 100% accurate.