MLA

Rabbards, Ralph. , Ripley, George, d. 1490?. The compound of alchymy. Or The ancient hidden art of archemie: conteining the right & perfectest meanes to make the philosophers stone, aurum potabile ... First written by ... George Ripley ... Set foorth by Raph Rabbards .... 1591. https://collections.library.yale.edu/catalog/2037958.

APA, 6th edition

Rabbards, Ralph. , & Ripley, George, d. 1490?. (1591)[The compound of alchymy. Or The ancient hidden art of archemie: conteining the right & perfectest meanes to make the philosophers stone, aurum potabile ... First written by ... George Ripley ... Set foorth by Raph Rabbards ...]. https://collections.library.yale.edu/catalog/2037958.