L., L., A. et al.(1995).Dryland forestry : planning and management / Peter F. Ffolliott, Kenneth N. Brooks, Hans M. Gregersen, Allen L. Lundgren .New York:John Wiley n Sons.
Gaya MLA
L., Lundgren., Allen. et al."Dryland forestry : planning and management / Peter F. Ffolliott, Kenneth N. Brooks, Hans M. Gregersen, Allen L. Lundgren".New York:John Wiley n Sons,1995.Textbook.