APA način citiranja (7. izdanje)
ebrary, Inc, & Pettman, B. (2004). 30 Years of IJSE: Festschrift in honour of Professor John O'Brien. Emerald Group Publishing.
Čikaški stil citiranja (17. izdanje)
ebrary, Inc, i Barrie Pettman. 30 Years of IJSE: Festschrift in Honour of Professor John O'Brien. Bradford, England: Emerald Group Publishing, 2004.
MLA način citiranja (9. izdanje)
ebrary, Inc, i Barrie Pettman. 30 Years of IJSE: Festschrift in Honour of Professor John O'Brien. Emerald Group Publishing, 2004.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.