Pokhriyal, T. C., Chaukiyal, S. P., & Naithani, H. B. (1993). Nitrogen Fixation and Nodulation Behaviour of some Nitrogen Fixing Species from Inner and Outer Himalaya. Indian Forester, 119(4), 310–320. https://doi.org/10.36808/if/1993/v119i4/8018