Clinical epidemiology : the essentials

MLA

Fletcher, Robert H., Suzanne W. Fletcher and Edward H. Wagner. Clinical epidemiology : the essentials. Second edition. Baltimore : Williams & Wilkins, [1988]

APA

Fletcher, R., Fletcher, S. & Wagner, E. (1988). Clinical epidemiology : the essentials. Second edition. Baltimore : Williams & Wilkins.

Chicago

Fletcher, Robert H., Suzanne W. Fletcher and Edward H. Wagner. Clinical epidemiology : the essentials. Second edition. Baltimore : Williams & Wilkins, [1988]