Keats, T. E. (1992). Atlas of Normal Roentgen Variants That May Simulate Disease (5 ed.). Mosby Year Book.

Keats, Theodore E. Atlas of Normal Roentgen Variants That May Simulate Disease. 5 ed. St. Louis: Mosby Year Book, 1992.

Keats, Theodore E. Atlas of Normal Roentgen Variants That May Simulate Disease. 5 ed. Mosby Year Book, 1992.