Rudolf Steiner / David De Angelis
Librería Samer Atenea
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Librería Kolima (Madrid)
Librería Proteo (Málaga)
The evolution of food forms - Problems of nutrition and therapeutic methods - Problems of nutrition observed in the light of Spiritual Science - The food process - The action of alcohol on man - The action of nicotine - Plant food and animal food