The International Society of Arboriculture publishes a series of brochures on quality tree care as part of its Consumer Information Program. For further information contact: ISA, PO Box 3129, Champaign, IL 61826, USA.
The National Arbor Day Foundation publishes a series of Tree City USA Bulletins on a variety of tree care topics, including: Don't Top Trees, How to Hire an Arborist, Plant the Right Tree in the Right Place, How to Prune Young Trees and many more. To join, write NADF, 100 Arbor Avenue, Nebraska City, NE 68410.
