1. Agrios, G. W., Plant Pathology: 345 (1969).
2. Anderson, E., Plants, Man, and Life: 133 (1952).
3. BROOKS, D.H., INFLUENCE OF DIRECT-DRILLING OF WINTER WHEAT ON INCIDENCE OF TAKE-ALL AND EYESPOT, ANNALS OF APPLIED BIOLOGY 61: 57 (1968).
4. BURKE, D.W., PLANT DISEASE REPORTER 41: 483 (1957).
5. COCHRAN, L.C., U. S. DEPARTMENT OF AGRICULTURE YEARBOOK: 152 (1953).