تعداد ۱ پاسخ غیر تکراری از ۱ پاسخ تکراری در مدت زمان ۲,۳۶ ثانیه یافت شد.

1. The harsh lands: a study in agriculture development

پدیدآورنده : by David B. Grigg

کتابخانه: Library of the Faculty of Economics University of Tehran (Tehran)

موضوع : Agirculture-Underdeveloped areas,Agriculture-Topics

رده :

439

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