Boyd's textbook of pathology.

APA Citation

Ritchie, A. C., Boyd, W. (1990). Boyd's textbook of pathology. 9th ed. / Philadelphia: Lea & Febiger.

MLA Citation

Ritchie, A. C, and William Boyd. Boyd's Textbook of Pathology. 9th ed. / Philadelphia: Lea & Febiger, 1990.

Warning: These citations may not always be complete (especially for serials).