Quietleader

Everett Rogers

The reference was not TO Rogers but is contained IN Rogers Diffusion of Innovations (p. 35 of 4th ed) and it is TO Ryan and Gross (1943), Gross (1942) and Ryan and Gross (1950), ALL of which predate the reference given in the article as "first." Dr. Perfessor (talk) 16:51, 29 October 2008 (UTC)

The references are:

Ryan, Bryce, and Neal C. Gross (1943) “The diffusion of hybrid seed corn in two Iowa communities.” Rural Sociology 8: 15-24. RS(E)

Ryan, Bryce, and Neal C. Gross (1950) Acceptance and diffusion of hybrid corn seed in two Iowa communities. Research Bulletin 372, Agricultural Experiment Station, Ames, Iowa.

Gross, Neal C. (1942) “The diffusion of a culture trait in two Iowa townships.” M.S. Thesis, Iowa State College, Ames.

They all appear to predate the one given in the article. Dr. Perfessor (talk) 21:08, 30 October 2008 (UTC)