Task 2
A Physical Copy of the book is available in the ETH library Zürich, HDB.
Höngerbergring 37
8093 Zürich
Sites where the book is currently available as an online Document:
e-rara: https://www.e-rara.ch/zut/content/titleinfo/3999460
google books: https://books.google.ch/books/about/Compendio_della_fortificatione_al_ser_mo.html?id=pn7J4sinKlAC&redir_esc=y