Cita APA (7a ed.)
Norton, G. W., Coffey, J. D., & Frye, E. B. (1983). Estimating Returns to Agricultural Research, Extension, and Teaching at the State Level. Cambridge University Press.
Cita Chicago Style (17a ed.)
Norton, George W., J. D. Coffey, y E. B. Frye. Estimating Returns to Agricultural Research, Extension, and Teaching at the State Level. Cambridge University Press, 1983.
Cita MLA (9a ed.)
Norton, George W., et al. Estimating Returns to Agricultural Research, Extension, and Teaching at the State Level. Cambridge University Press, 1983.
Precaución: Estas citas no son 100% exactas.