Cita APA (7a ed.)
Anderson, J. R., Hazell, P. B. R., & Evans, L. T. (1987). Variability of cereal yields: Sources of change and implications for agricultural research and policy. Elsevier.
Cita Chicago Style (17a ed.)
Anderson, Jock R., Peter B. R. Hazell, y Lloyd T. Evans. Variability of Cereal Yields: Sources of Change and Implications for Agricultural Research and Policy. Elsevier, 1987.
Cita MLA (9a ed.)
Anderson, Jock R., et al. Variability of Cereal Yields: Sources of Change and Implications for Agricultural Research and Policy. Elsevier, 1987.
Precaución: Estas citas no son 100% exactas.