G, Shanmugam. “An Extended Tribute to Professor George Devries Klein (1933-2018): A Sedimentologic Pioneer and a Petroleum Geologist”. Journal of The Indian Association of Sedimentologists (peer reviewed) 35, no. 1 Jan - Ju (July 1, 2018): 107–118. Accessed May 3, 2024. http://journal.indiansedimentologists.com/ojs/index.php/1/article/view/34.