1. Percentage of sales invested in advertising in 1964-'65: for 266 separate product classifications Collection: Agricultural Communications Documentation Center (ACDC) Format: Journal article Publication Date: 1967-09-18 Published: USA Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 122 Document Number: C15716 Journal Title: Advertising Age Journal Title Details: 38: 77 Notes: 1 p.