Gregory, J., & Gurgany, J. Gregorii posthuma, or, Certain learned tracts.
Chicago Style (17th ed.) CitationGregory, John, and John Gurgany. Gregorii Posthuma, or, Certain Learned Tracts.
MLA (9th ed.) CitationGregory, John, and John Gurgany. Gregorii Posthuma, or, Certain Learned Tracts.
Warning: These citations may not always be 100% accurate.