Barker, R. E. Copyright and reprographic reproduction: International copyright and copyright in developing countries.
Čikaški stil citiranja (17. izdanje)Barker, Ronald Ernest. Copyright and Reprographic Reproduction: International Copyright and Copyright in Developing Countries.
MLA način citiranja (9. izdanje)Barker, Ronald Ernest. Copyright and Reprographic Reproduction: International Copyright and Copyright in Developing Countries.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.