APA način citiranja (7. izdanje)
Engel, P. C. (2009). Pain-free biochemistry: An essential guide for the health sciences. Wiley-Blackwell.
Čikaški stil citiranja (17. izdanje)
Engel, Paul C. Pain-free Biochemistry: An Essential Guide for the Health Sciences. Chichester, UK ; Hoboken, NJ: Wiley-Blackwell, 2009.
MLA način citiranja (9. izdanje)
Engel, Paul C. Pain-free Biochemistry: An Essential Guide for the Health Sciences. Wiley-Blackwell, 2009.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.