MLA

Ashley, Alfred, and printmaker. Beckford's Tower & Tomb, Walcot Cemetery, Nr. Bath Drawn & Engraved for the British Gazetteer / [Graphic]. Published (for the proprietors) by H.G. Collins, 22 Paternoster Row, 0AD. https://collections.library.yale.edu/catalog/15816365.

APA, 6th edition

Ashley, A., & printmaker. (0 C.E.). Beckford's Tower & tomb, Walcot Cemetery, nr. Bath drawn & engraved for the British Gazetteer / [graphic] [Periodical illustrations England London 1850, Steel engravings England London 1850]. Published (for the proprietors) by H.G. Collins, 22 Paternoster Row. https://collections.library.yale.edu/catalog/15816365.