Kumar, D., Negi, S. S., Pandey, R., Pundir, I., Tomar, A., & Kumar, P. (2007). Variation in Cone and Seed Morphology of <I>Pinus roxburghii</I> Sargent : Effect of Population and Mother Tree. Indian Forester, 133(6), 749–758. https://doi.org/10.36808/if/2007/v133i6/1626