APA
Harris E. L., Fitzgerald J. D., . (1970). The Principles and practice of clinical trials. Edinburgh: Livingstone.
Chicago
Harris Edmund Leslie, Fitzgerald John Desmond, . 1970. The Principles and practice of clinical trials. Edinburgh: Livingstone.
Harvard
Harris E. L., Fitzgerald J. D., . (1970). The Principles and practice of clinical trials. Edinburgh: Livingstone.
MLA
Harris Edmund Leslie, Fitzgerald John Desmond, . The Principles and practice of clinical trials. Edinburgh: Livingstone. 1970.