Kerr .D.J, Young M.A & Hobbs R D. (2001). ABC of colorectal cancer. London: Marrit company.
Kerr .D.J, Young M.A and Hobbs R D,F. 2001. ABC of colorectal cancer. London: Marrit company.
Kerr .D.J, Young M.A and Hobbs R D. (2001). ABC of colorectal cancer. London: Marrit company.
Kerr .D.J, Young M.A and Hobbs R D,F. ABC of colorectal cancer. London: Marrit company. 2001.