Howes, F.N. . Vegetable Gums and Resins / Textual Documents F.N.Howes. - 1st ed. / - Wiltham : Chronica Botanica Co. , 1994. - 188p. : ill ; 22cm . ISBN: HB Subjects--Index Terms: Vegetable Gums Resins G-Technology Dewey Class. No.: 633.816 / H 839 V