MLA

Janus, Pannonius, Bishop of Pécs, 1434-1472, author. Iani Pannonii quinque ecclesiarum praesulis, poetae candidissimi, Elegiaru[m] aureum opusculum : extant autoris eiusde[m] poemata plurima, quae in manus studiosor[um] propedie[m] uentura spera[n]tur. [1514]. https://collections.library.yale.edu/catalog/32187988.

APA, 6th edition

Janus, Pannonius, Bishop of Pécs, 1434-1472, author. ([1514])[Iani Pannonii quinque ecclesiarum praesulis, poetae candidissimi, Elegiaru[m] aureum opusculum : extant autoris eiusde[m] poemata plurima, quae in manus studiosor[um] propedie[m] uentura spera[n]tur]. https://collections.library.yale.edu/catalog/32187988.