[1]
Gupta, M.K. et al. 1989. Soil Chemical Properties of Silver Fir and Spruce Forest Under Different Systems of Silviculture. II-Changes in Soil Phosphorus. Indian Forester. 115, 11 (Nov. 1989), 802–810. DOI:https://doi.org/10.36808/if/1989/v115i11/9123.