एपीए उद्धरण

Polanka, S. (2011). No shelf required: E-books in libraries. Chicago: American Library Association.

शिकागो स्टाइल उद्धरण

Polanka, Sue. No Shelf Required: E-books in Libraries. Chicago: American Library Association, 2011.

एमएलए उद्धरण

Polanka, Sue. No Shelf Required: E-books in Libraries. Chicago: American Library Association, 2011.