00605nam a22001697a 4500008004100000020001500041040001500056050003100071100002800102245013300130246006200263260003700325300001500362650001800377700002100395700001900416180803b        xxu||||| |||| 00| 0 eng d  a0471942170  aKABUcKABU  aRS164b.W55 1996 v. 1 c. 1  aWillamson, Elizabeth M.  aSelection, preparation and pharmacological evaluation of plant materialcElizabeth M. Williamson, David T. Okpako, Fred J. evans  aPharmacological methods in phytotherapy research volume 1  aEnglandbJohn Wiley & Sonsc1996  aix, 228 p.  aPharmacognosy  aOkpako, David T.  aEvans, Fred J.