MLA

Johnson, Sam H., III, and Earl D Kellogg. Extension's Role In Adapting and Evaluating New Technology for Farmers. International, 1984.

APA

Johnson, I., & Kellogg, E. D. (1984). Extension's role in adapting and evaluating new technology for farmers. International.

Chicago

Johnson, Sam H., III, and Earl D Kellogg. Extension's Role In Adapting and Evaluating New Technology for Farmers. International, 1984.