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APA Citation
Hammad, H. M., Ahmad, A., Abbas, F., Farhad, W., Cordoba, B. C., & Hoogenboom, G. (2015). water and Nitrogen Productivity of Maize under Semiarid Environments. Crop science, 55(2), 877–888. http://access.bl.uk/ark:/81055/vdc_100099932688.0x00002e