1The library's collection includes a rare, 19th-century encyclopedia that is highly valued by researchers.
2Is it still relevant to publish a printed encyclopedia when most information is available online?
3The team of experts spent years compiling a comprehensive encyclopedia of endangered species.
4Try to find a reliable online encyclopedia that provides accurate and up-to-date information on scientific topics.
5The development of digital encyclopedias has transformed the way we access and share knowledge globally.