TY - BOOK AU - Natori, Shinsaku AU - Ikekawa, Nobuo AU - Suzuki, Makoto TI - Advances in natural products chemistry: : extraction and isolation of biologically active compounds SN - 0-470-27245-7 U1 - 547 20 PY - 1981/// CY - New York: PB - Halsted Press: ER -