APA (7th ed.) Citation

Schmidt, R. F., & Willis, W. (2007). Encyclopedia of pain. Springer-Verlag Berlin Heidelberg.

Chicago Style (17th ed.) Citation

Schmidt, Robert F., and W.D Willis. Encyclopedia of Pain. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2007.

MLA (8th ed.) Citation

Schmidt, Robert F., and W.D Willis. Encyclopedia of Pain. Springer-Verlag Berlin Heidelberg, 2007.