Accumulation of organic substances and nutrient elements in the soil under cultivation of various agricultural crops in the conditions of the Shirak Plateau of the Republic of Armenia
Petrosyan, Armen Zhorzhikovich, 1992, Candidate of Sciences dissertation
Accumulation of organic substances and nutrient elements in the soil under cultivation of various agricultural crops in the conditions of the Shirak Plateau of the Republic of Armenia — Petrosyan, Armen Zhorzhikovich — 1992 — Russian Dissertation Library