Encyclopedia of human ecology : edited by K. S. Gulia Human ecology of spiritual traditions ( in 5 vol.) , Vol. 1 / Gulia, K. S. Human ecology Encyclopedias. 304.2 21 ENC Includes bibliographical references and index. New Delhi : ISHA Books, 2007 2007 2003 Text 344 p. : http://www.loc.gov/catdir/description/abcclio041/2003004178.html eng