TY - BOOK AU - Le Bon,Gustave ED - Asutosh Collection (National Library, India) TI - The evolution of forces U1 - 530.1 PY - 1908/// CY - London PB - Kegan Paul, Trench, Trubner KW - Force and energy KW - Phosphorescence KW - Radioactivity N1 - Includes index ER -