Cita APA (7a ed.)
Alston, J. M., & Venner, R. J. (2000). The effects of the U.S. Plant Variety Protection Act on wheat genetic improvement. International Food Policy Research Institute.
Cita Chicago Style (17a ed.)
Alston, Julian M., y Raymond J. Venner. The Effects of the U.S. Plant Variety Protection Act on Wheat Genetic Improvement. International Food Policy Research Institute, 2000.
Cita MLA (9a ed.)
Alston, Julian M., y Raymond J. Venner. The Effects of the U.S. Plant Variety Protection Act on Wheat Genetic Improvement. International Food Policy Research Institute, 2000.
Precaución: Estas citas no son 100% exactas.