Murphy, J. (2012). Location-Aware Services and QR Codes for Libraries: (THE TECH SET #13). ALA Editions.
Chicago-Zitierstil (17. Ausg.)Murphy, Joe. Location-Aware Services and QR Codes for Libraries: (THE TECH SET #13). Chicago: ALA Editions, 2012.
MLA-Zitierstil (9. Ausg.)Murphy, Joe. Location-Aware Services and QR Codes for Libraries: (THE TECH SET #13). ALA Editions, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.