Kodutöö
org/tu_history.shtml 26.11.2007
63. http://www.graymont.com/applications_history_lime_mortar.shtml 26.11.2007
64. http://www.suite101.com/article.cfm/building_construction/36885 26.11.2007
65. http://www.buildingconservation.com/directory/ad229.htm 26.11.2007
66. http://www.ice.org.uk/knowledge/document_details.asp?Docu_id=131&faculty=8
26.11.2007
67. http://live.asce.org/hh/index.mxml 26.11.2007
68. http://www.rumford.com/articlemortar.html 26.11.2007
69. http://www.cob.montevallo.edu/CobertTM/history.htm 26.11.2007
70. http://www.steelconstruction.org/static/assets/source/Historical%20Steelwork
%20Handbook.pdf 26.11.2007
71. http://www.giorgiozanetti.ca/bricks/brickpreface.html 26.11.2007
72. http://content.asce.org/history/hh_links.html 26.11.2007
73. http://www3.imperial.ac.uk/library/aboutthelibrary/specialcollections/civilenginee
8
ringhistory 26.11.2007
74. http://matse1.mse.uiuc