Masani, N.J. 1951. Simple Calculations in the Design of Forest Bridges of Stock Spans of 15, 20, 30 and 40 Feet - Part V (b) (Analytical Method). Indian Forester. 77, 5 (May 1951), 343–359. DOI:https://doi.org/10.36808/if/1951/v77i5/23297.