Coppen, J. J. W., & Hone, G. A. (1995). Gum Naval Stores Turpentine and Rosin from Pine Resin, Non-Wood Forest Products 2. Rome Natural Resources Institute, FAO. - References - Scientific Research Publishing
Coppen, J. J. W., & Hone, G. A. (1995). Gum Naval Stores Turpentine and Rosin from Pine Resin, Non-Wood Forest Products 2. Rome Natural Resources Institute, FAO. - References - Scientific Research Publishing