Cita APA (7a ed.)
Pardey, P. G., Roseboom, J., & Craig, B. J. (1992). A yardstick for international comparisons: An aplication to national agricultural research expenditure.
Cita Chicago Style (17a ed.)
Pardey, Philip G., Johannes Roseboom, y Barbara J. Craig. A Yardstick for International Comparisons: An Aplication to National Agricultural Research Expenditure. 1992.
Cita MLA (9a ed.)
Pardey, Philip G., et al. A Yardstick for International Comparisons: An Aplication to National Agricultural Research Expenditure. 1992.
Precaución: Estas citas no son 100% exactas.