TY - BOOK ID - BVMC:629226 AU - Placentinus, Petrus TI - Placentini ... In summam Institutionu[m] sive elementorum D. Iustiniani sacratiss. principis UR - https://www.cervantesvirtual.com/obra/placentini--in-summam-institutionum-sive-elementorum-d-iustiniani-sacratiss-principis ER -