Kaul, O. N. and Srivastava, P. B. L. (1967) “Nutrient Uptake of Fir (<I>Abies pindrow</I>) and Spruce (<I>Picea smithiana</I>)”, Indian Forester, 93(11), pp. 749–753. doi: 10.36808/if/1967/v93i11/25724.