The Mysterious Forces of Civilization  Written in Persian by an eminent Bahai philosopher 
 Risālah-ʼi madanīyah  رسالۀ مدنيه 

 - Chicago  Bahai Publishing Society  1918 
 - 131 p.  Hardback 
<br/><br/> Now superseded by the translation of Marzieh Gail under the title, The Secret of Divine Civilization (1957) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Letters--'Abdu'l-Baha<br/>Collected Works--'Abdu'l-Baha<br/>The Secret of Divine Civilization--'Abdu'l-Baha