एपीए उद्धरण

(2020). Digital Libraries: Universal and Ubiquitous Access to Information. Springer Berlin Heidelberg.

शिकागो स्टाइल उद्धरण

Digital Libraries: Universal and Ubiquitous Access to Information. Springer Berlin Heidelberg, 2020.

एमएलए उद्धरण

Digital Libraries: Universal and Ubiquitous Access to Information. Springer Berlin Heidelberg, 2020.