APA
Boyd W. &. S. H., . (1980). Introduction to the study of disease. Lea & Febiger, Philadelphia: .
Chicago
Boyd William & Sheldon Huntington, . 1980. Introduction to the study of disease. Lea & Febiger, Philadelphia: .
Harvard
Boyd W. &. S. H., . (1980). Introduction to the study of disease. Lea & Febiger, Philadelphia: .
MLA
Boyd William & Sheldon Huntington, . Introduction to the study of disease. Lea & Febiger, Philadelphia: . 1980.