APA
Taylor R. B., . (1992). Difficult diagnosis. Philadelphia: W. B. Saunders.
Chicago
Taylor Robert B, . 1992. Difficult diagnosis. Philadelphia: W. B. Saunders.
Harvard
Taylor R. B., . (1992). Difficult diagnosis. Philadelphia: W. B. Saunders.
MLA
Taylor Robert B, . Difficult diagnosis. Philadelphia: W. B. Saunders. 1992.