Goel, S.L. creator S.l.] Deep & Deep Publications 2002 3rd ed. 612 p. S.L. Goel. Hardcover. 8171002544 9788171002542 http://www.amazon.com/exec/obidos/ASIN/8171002544/chopaconline-20 http://www.chopac.org/cgi-bin/tools/azrev.pl?q=8171002544 http://www.amazon.com/exec/obidos/ASIN/8171002544/chopaconline-20 http://www.chopac.org/cgi-bin/tools/azrev.pl?q=8171002544