718.580 718.581 NGUYEN THOI NHAM Study on Panax vietnamensis Ha et Grushv : Araliaceae botany, tissue culture chemistry, biological properties : thesis for doctor habil. degree / Nguyen Thoi Nham ; Institute of Medicinal Plants in Poznań Poland Science Production Centre of Vietnamese Ginseng, Vietnam. - Poznań : Instytut Roślin i Przetworów Zielarskich, 1989. - [8], 229 s. : il., wykr. ; 21 cm (Herba Polonica ; T.,35, supl. 2)