APA
Armitage P. &. B. G., . (1987). Statistical methods in medical research. Blackwell Scientific publications, Oxford: .
Chicago
Armitage P & Berry G, . 1987. Statistical methods in medical research. Blackwell Scientific publications, Oxford: .
Harvard
Armitage P. &. B. G., . (1987). Statistical methods in medical research. Blackwell Scientific publications, Oxford: .
MLA
Armitage P & Berry G, . Statistical methods in medical research. Blackwell Scientific publications, Oxford: . 1987.