APA

Twycross A., Dowden S. J. & Bruce E. (2009). Managing pain in children. West Sussex: Wiley-Blackwell.

Chicago

Twycross Alison, Dowden Stephanie J and Bruce Elizabeth. 2009. Managing pain in children. West Sussex: Wiley-Blackwell.

Harvard

Twycross A., Dowden S. J. and Bruce E. (2009). Managing pain in children. West Sussex: Wiley-Blackwell.

MLA

Twycross Alison, Dowden Stephanie J and Bruce Elizabeth. Managing pain in children. West Sussex: Wiley-Blackwell. 2009.