l166.
Geiser (2001), pp 260–262; Mark R. Finlay, “Old Efforts at New Uses: A Brief History of Chemurgy and the American Search for Biobased Materials”.
Geiser (2001), pp 260–262; Mark R. Finlay, “Old Efforts at New Uses: A Brief History of Chemurgy and the American Search for Biobased Materials”.