In library science, while a system that allows patrons to browse shelves directly is called open access, a system where only staff may enter the stacks to retrieve materials is called _____ access.

### Why this is right Closed-access materials are restricted and generally cannot be taken out of the library. ### The concept Reference materials may also be designated for in-library use. These restrictions help keep important or specialized resources available to users on site. ### Remember Closed access means access is controlled, often for use inside the library.