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AAAP constitution, July 11, 1958
AAAP history: the first ten years, 1957-1967
Report of a meeting to discuss the formation of an American Association of Avian Pathologists
P. P. Levine letter to L. C. Grumbles, February 21, 1957
Henry Van Roekel letter to L. C. Grumbles, February 15, 1957
S. B. Hitchner letter to Henry Van Roekel, November 4, 1957
L. C. Grumbles memorandum, March 18, 1957
Report Entitled, "The Operation of Some Factors Other than Vaccine in Poultry Immunization," 1955