Cita APA

Boyd, W. 1., & Sheldon, H. (1980). Introduction to the study of disease (8. edition.). Philadelphia: Lea & Febiger.

Citación estilo Chicago

Boyd, William 1885-1979, y Huntington Sheldon. Introduction to the Study of Disease. 8. edition. Philadelphia: Lea & Febiger, 1980.

Cita MLA

Boyd, William 1885-1979, y Huntington Sheldon. Introduction to the Study of Disease. 8. edition. Philadelphia: Lea & Febiger, 1980.