APA-viite

Cramer,Gail L, & Jensen,Clarence W. (1979). Agricultural economics and agribusiness. John Wiley & Sons.

Chicago-tyylinen lähdeviittaus

Cramer,Gail L, ja Jensen,Clarence W. Agricultural Economics and Agribusiness. New York: John Wiley & Sons, 1979.

MLA-viite

Cramer,Gail L, ja Jensen,Clarence W. Agricultural Economics and Agribusiness. John Wiley & Sons, 1979.