Microscopical and submicroscopical structure of Plant potatoes (Solanum tuberosum L.) cultivated in in vitro / Prathiba Aruni Weerasinghe . Nitra :  University of Agriculture , 1993 . 112 s - 86 fot, 1 obr, 1 tab, lit 18 s . [1, z toho požičaných 0]