Rautapää, Jorma, Hilkka Siltanen, Anna-Liisa Valta, and Veijo Mattinen. “DDT, Lindane and Endrin in Some Agricultural Soils in Finland”. Agricultural and Food Science 44, no. 4 (December 1, 1972): 199–206. Accessed July 22, 2024. https://journal.fi/afs/article/view/71825.