Tables for computing percentages
Subtitle: for numbers 1 to 250.
Series: Its ARS 20-6
Published: 1957
Place of publication: [Washington]
Language: eng
Number of pages: 75
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.