00410pamaa2200133 4500 0000049333 20110718090000.0 110718 eng 00393606 Surveyor : vol. 197, No. 1, 2009. London: Hemming Group, 1990-. v.: ill. (some col.), maps (some col.); 30 cm. Surveying -- Periodicals www.surveyormagazine.com