Doran, D. (2009). Site engineers manual (Second edition.). Whittles Publishing.
Tohutoru Kātū Chicago (17th ed.)Doran, David. Site Engineers Manual. Second edition. Dunbeath, Scotland: Whittles Publishing, 2009.
Tohutoro MLA (9th ed.)Doran, David. Site Engineers Manual. Second edition. Whittles Publishing, 2009.
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