An ilustrated guide to the state of health of trees: recognition and interpretation of symptoms and damage / by Eric Boa - Rome : FAO, 2003. - 49 p. : ilus. ISBN: 9251050201 LCCN: 89531 Subjects--Topical Terms: Árboles--Enfermedades.Árboles--Plagas. Dewey Class. No.: 634.96 / F33