TY  - BOOK
AU  - Hala Mohamed EL Hefnawy,
AU  - Aly EL Shamy
AU  - Seham EL hawary
AU  - Heinrich Glasl
AU  - Abdel Rahman EL Shabrawy
TI  - A pharmacacognostical Study Of Certain Echinacea And Grindelia Species Growing In Egypt: Remainder of title / 
PY  - 1995///
KW  - Pharmacognosy
N1  - Thesis (Ph.D)-Cairo University, 1995; Bibliography: pages 239-258.
ER  -