Leo N León, Harter. H. New tables of the incomplete gamas function ratio and of percentage points of the chiesquare and beta distributions/by H. Leon Harter. Washington: B.S. Gout. Prist. Off.. 1964. iv. 245 p.: tabs.: 27 cm Aerospace Research Laboratories. Office od Aerospae Research. Unites States Aire Force Continua ficha 2