Maintenance of The Bisophere : proceedings of the Third International Conference on Environmental Future (3rd ICEF) / edited by Nicholas Polunin and John H. Burnett - London : Edinburgh University Press, 1972 - 228 p. : ill. ; 22 cm. Includes index ISBN: USD 25.00 Subjects--Topical Terms: EcologyFire ecology Dewey Class. No.: 577.2