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|All Authors / Contributors:||United States. Agricultural Research Service.|
|Notes:||"These tables were originally prepared by Charles A. Clark and published in 1940 [under title: Percentage tables for numbers from 1 to 250] as ET-172 of the Bureau of Entomology and Plant Quarantine of the United States Department of Agriculture.|
|Description:||75 p. 27 cm.|
|Series Title:||United States.; Agricultural Research Service.; ARS 20-6.|