Falconer, Bruce H. “Preliminary Comment on Damage to Buildings in the Inangahua Earthquake”. Bulletin of the New Zealand Society for Earthquake Engineering 1, no. 2 (December 31, 1968): 61-71. Accessed September 24, 2021. https://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/1447.