Earthquake and War Damage Commission. “A Preliminary Report on the Inangahua Earthquake New Zealand , May 24, 1968”. Bulletin of the New Zealand Society for Earthquake Engineering 2, no. 2 (June 30, 1969): 2-8. Accessed April 21, 2021. https://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/1399.