Essential-oil plants
by L. P. A. Oyen, Xuân Dũng Nguyễn, Prosea Project
Oilseed plantsAromatic plantsEssences and essential oils
Writing a summary for young readers…
For young readers
Book data: Open Library
by L. P. A. Oyen, Xuân Dũng Nguyễn, Prosea Project
Book data: Open Library