Davies, J. Communication Skills: A Guide for Engineering and Applied Science Students (3.). Pearson Education UK.
Čikaški stil citiranja (17. izdanje)Davies, John. Communication Skills: A Guide for Engineering and Applied Science Students. 3. Pearson Education UK.
MLA način citiranja (8. izdanje)Davies, John. Communication Skills: A Guide for Engineering and Applied Science Students. 3. Pearson Education UK.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.