Most Italian university libraries (e.g., La Sapienza in Rome, University of Milan) have multiple copies of Villego in their reserve sections. Many also offer where you can borrow a PDF for 1-2 weeks legally through platforms like MLOL (MediaLibraryOnLine) .
If a "biologia villego pdf" you encounter skips entire sections (e.g., goes from genetics straight to ecology without animal diversity), it is likely incomplete. biologia villego pdf