MLA

Sample, G.W, and J.S Swaim. Indiana Newspapers and Their Service to Agriculture. USA: Extension Service, U.S. Department of Agriculture, Washington, D.C, .

APA

Sample, G., & Swaim, J. (.). Indiana newspapers and their service to agriculture. USA: Extension Service, U.S. Department of Agriculture, Washington, D.C.

Chicago

Sample, G.W., and J.S Swaim. Indiana Newspapers and Their Service to Agriculture. USA: Extension Service, U.S. Department of Agriculture, Washington, D.C, ..