Ardalan, Nader Bakhtiar, Laleh Nasr, Seyyed Hossein The sense of unity : the Sufi tradition in Persian architecture Nader Ardalan and Laleh Bakhtiar with forword by Seyyed Hossein Nasr - The University of Chicago Press Chicago and London 1973 1973 - xviii , 151 p. : ill. ; 31 cm. Bibliography : p. 143-147 Includes index ISBN: 0226025594 Subjects--Topical Terms: Architecture , Persian--NA LC Class. No.: NA225.A7 1973