Pritchard, S. G., & thor, J. S. (2005). Crops and environmental change: An introduction to effects of global warming, increasing atmospheric CO? and O? concentrations, and soil salinization on crop physiology and yield. Food Products Press.

Pritchard, Seth G., and Jeffrey S. thor. Crops and Environmental Change: An Introduction to Effects of Global Warming, Increasing Atmospheric CO? and O? Concentrations, and Soil Salinization on Crop Physiology and Yield. w York: Food Products Press, 2005.

Pritchard, Seth G., and Jeffrey S. thor. Crops and Environmental Change: An Introduction to Effects of Global Warming, Increasing Atmospheric CO? and O? Concentrations, and Soil Salinization on Crop Physiology and Yield. Food Products Press, 2005.