Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.