Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C36967
Notes:
Agricultural Publishers Association Records, Series No. 8/3/80, Box 16, Presented at the annual APA meeting, Chicago, Illinois, October 18-19, 1949. 4 pages., Identifies average cost per 100 readers, by subject classification (e.g., agricultural chemicals and fertilizers, automotive industry, building materials and equipment, seeds).
