Singh, Virendra, V. K. Sah, and O. P. S. Bana. 1996. “Effect of Cone Diameter on Seed Yield, Moisture Content and Germination in Himalayan Blue Pine (<I>Pinus wallichiana< I> A.B. Jacks)”. Indian Forester 122 (2):150-54. https://doi.org/10.36808/if/1996/v122i2/6222.