by Heber W. Youngken
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Pharmaceutical botany
Certain poisonous plants of Egypt
Studies on Indian Rhubarb
Pharmacognostical and chemical studies o...
A Pharmacognostical Study of Rauwolfia
The rose and the ring
A text-book of pharmacognosy
Drogenkunde
Biologically active natural products
Biochemical Targets of Plant Bioactive C...
Chinese materia medica