MLA

Breydenbach, Bernhard von, approximately 1440-1497. Prefatio in opus transmarine peregrinationis ad venerandu[m] et gloriosum sepulcru[m] Dominicu[m] in Iherusale[m] .... anno salutis 1486 die xj Februarij.. https://collections.library.yale.edu/catalog/2057980.

APA, 6th edition

Breydenbach, Bernhard von, approximately 1440-1497. (anno salutis 1486 die xj Februarij.)[Prefatio in opus transmarine peregrinationis ad venerandu[m] et gloriosum sepulcru[m] Dominicu[m] in Iherusale[m] ...]. https://collections.library.yale.edu/catalog/2057980.