@book{ international1972iaea, title={Use of Isotopes for Study of Fertilizer Utilization by Legume Crops}, author={ }, series={entity}, number={149 }, year={1972}, isbn={ }, url={/publications/393/use-of-isotopes-for-study-of-fertilizer-utilization-by-legume-crops }, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY }, address={Vienna} }