Cita APA (7th ed.)

ebrary, Inc, & Polanka, S. (2012). No shelf required 2: Use and management of electronic books. American Library Association.

Cita Chicago (17th ed.)

ebrary, Inc, i Sue Polanka. No Shelf Required 2: Use and Management of Electronic Books. Chicago: American Library Association, 2012.

Cita MLA (9th ed.)

ebrary, Inc, i Sue Polanka. No Shelf Required 2: Use and Management of Electronic Books. American Library Association, 2012.