Fliegel, F., Kivlin, J., & Roy, P. (1968). Two blades of grass: A summary of two studies on agricultural innovation in India. National Institute of Community development.
استشهاد بنمط شيكاغوFliegel, Frederick, Joseph Kivlin, و Prodipto Roy. Two Blades of Grass: A Summary of Two Studies on Agricultural Innovation in India. Hyderabad: National Institute of Community development, 1968.
MLA استشهادFliegel, Frederick, et al. Two Blades of Grass: A Summary of Two Studies on Agricultural Innovation in India. National Institute of Community development, 1968.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.