Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.