Farfan, H. F. Mechanical disorders of the low back / by H. F. Farfan. - Philadelphia : Lea & Febiger, 1973. - xi, 247 p. : ill. ; 26 cm. Includes bibliographies. ISBN: 0812104188 LCCN: 73-003348 //r88 Subjects--Topical Terms: Backache.Vertebrae, Lumbar--Diseases.