MLA

Arnaldus, de Villanova, d. 1311, Carpenter, Richard, d. 1670?, Ripley, George, d. 1490?. [Emblematic Alchemy in English verse, with an English version of the Visio mystica of Arnold of Villanova]. circa 1570. https://collections.library.yale.edu/catalog/10269803.

APA, 6th edition

Arnaldus, de Villanova, d. 1311, & Carpenter, Richard, d. 1670?, & Ripley, George, d. 1490?. (circa 1570)[[Emblematic Alchemy in English verse, with an English version of the Visio mystica of Arnold of Villanova]]. https://collections.library.yale.edu/catalog/10269803.