http://www.sulit.com.ph/index.php/view+classifieds/id/5440697/Engineering+News-Record%2C+Sept+26%2C+2011+%28Back+Issue%29+70%25+off Discussion for Engineering News-Record, Sept 26, 2011 (Back Issue) 70% off 24 May 2013 20:27:50 GMT 24 May 2013 20:27:50 GMT http://creativecommons.org/licenses/by-nc-nd/2.0/