United States Department of Agriculture
Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
This is a classic reprint of the Farmers’ Bulletin #663, by the United States Department of Agriculture. It’s an historical marker of where we were at (in the early part of the 20th century) concerning the manufacture of natural drugs, from medicinal plants.