Cita APA (7a ed.)
ebrary, Inc, Tweeten, L. G., & Thompson, S. R. (2002). Agricultural policy for the 21st century. Iowa State Press.
Cita Chicago Style (17a ed.)
ebrary, Inc, Luther G. Tweeten, y Stanley R. Thompson. Agricultural Policy for the 21st Century. Ames: Iowa State Press, 2002.
Cita MLA (9a ed.)
ebrary, Inc, et al. Agricultural Policy for the 21st Century. Iowa State Press, 2002.
Precaución: Estas citas no son 100% exactas.