Oystein Bortne

Unique Environmentalism: A Comparative Perspective (Nonprofit and Civil Society Studies) by Gunnar Grendstad,Per Selle,Kristin Stromsnes,Oystein Bortne Springer Hardcover 26 July 2006 from£25.13 | RRP: ~~£72~~
Number Theory and Its History (Dover classics of science & mathematics) by Oystein Ore Dover Publications Inc. Paperback 1 March 1989 from£12.15 | RRP: ~~£13.99~~