Alston, J. M., Norton, G. W., & Paedey, P. G. (1998). Science under scarcity: Principles and practice for agricultural research evaluation and priority setting. CAB international.
استشهاد بنمط شيكاغوAlston, Julian M., George W. Norton, و Philip G. Paedey. Science Under Scarcity: Principles and Practice for Agricultural Research Evaluation and Priority Setting. U K: CAB international, 1998.
MLA استشهادAlston, Julian M., et al. Science Under Scarcity: Principles and Practice for Agricultural Research Evaluation and Priority Setting. CAB international, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.