Publicado por Baha'i Publishing Trust, Wilmette, Illinois, 1968
Librería: Kubik Fine Books Ltd., ABAA, Dayton, OH, Estados Unidos de America
Hardcover. 350p. plus index. An orange cloth hardcover book in very good condition. Gift plate on front free endpaper; former owner's private library stamp on endpapers and title page. Otherwise, text clean and binding secure.