Negi, S. (1996). Manual of Indian forestry: Vol.2. Bishen Singh Mahendra Pal Singh.
Dyfyniad Arddull ChicagoNegi, S.S. Manual of Indian Forestry: Vol.2. Dehra Dun: Bishen Singh Mahendra Pal Singh, 1996.
Dyfyniad MLANegi, S.S. Manual of Indian Forestry: Vol.2. Bishen Singh Mahendra Pal Singh, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.