Home › Authors › Douglas W. Thornburg 👤 Douglas W. Thornburg 4 books Books by Douglas W. Thornburg 2018 International Building Co 2018 International Building Code Illustrated Handbook 2018 2015 International Building Co 2015 International Building Code Illustrated Handbook 2015 2012 International Building Code Handbook 2013 2006 International building co 2006 International building code study companion 2007