COPPEN, Greenhalgh, & Smith. (1984). Gum naval stores: An industrial profile of turpentine and rosin production from pine resin. Tropical Development and Research Institute.
Chicago Style (17th ed.) CitationCOPPEN, Greenhalgh, and Smith. Gum Naval Stores: An Industrial Profile of Turpentine and Rosin Production from Pine Resin. London: Tropical Development and Research Institute, 1984.
MLA (9th ed.) CitationCOPPEN, et al. Gum Naval Stores: An Industrial Profile of Turpentine and Rosin Production from Pine Resin. Tropical Development and Research Institute, 1984.
Warning: These citations may not always be 100% accurate.