Manum SB. 13th Sir Albert Charles Seward Memorial Lecture: Palynology, Organic Petrology and Petroleum - A Palaeobotanists View. JPS [Internet]. 1983 Dec. 31 [cited 2024 May 24];31((1-3):100-7. Available from: https://www.jpsonline.co.in/index.php/jop/article/view/1712