Bjoorn, E. O. (1954). Wood pulp: A technical and commercial handwook. Swedish Timber and Wood Pulp Journal(Ab Svensk Travaru-Tidning).
Lua i Stíl Chicago (17ú heag.)Bjoorn, Erland O. Wood Pulp: A Technical and Commercial Handwook. London: Swedish Timber and Wood Pulp Journal(Ab Svensk Travaru-Tidning), 1954.
Lua MLA (9ú heag.)Bjoorn, Erland O. Wood Pulp: A Technical and Commercial Handwook. Swedish Timber and Wood Pulp Journal(Ab Svensk Travaru-Tidning), 1954.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.