SHARMA, A. K.; KUMAR, V. Effect of Varying Levels of Nitrogen and Plant Density on the Production Behaviour of Undersize Seed Tubers of Potato (Solanum Tuberosum) in North-Western Hills of India. Indian J Agri Sci 2014, 84 (3), 407–10. https://doi.org/10.56093/ijas.v84i3.38593.