APA (7e ed.) Bronvermelding
ebrary, Inc, & Polanka, S. (2011). No shelf required: E-books in libraries. American Library Association.
Chicago (17e ed.) Bronvermelding
ebrary, Inc, en Sue Polanka. No Shelf Required: E-books in Libraries. Chicago: American Library Association, 2011.
MLA (9e ed.) Bronvermelding
ebrary, Inc, en Sue Polanka. No Shelf Required: E-books in Libraries. American Library Association, 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.