Linnea, A. (2010). Keepers of the trees: A guide to re-greening North America. Skyhorse Pub..
Cita Chicago Style (17a ed.)Linnea, Ann. Keepers of the Trees: A Guide to Re-greening North America. New York, NY: Skyhorse Pub., 2010.
Cita MLA (8a ed.)Linnea, Ann. Keepers of the Trees: A Guide to Re-greening North America. Skyhorse Pub., 2010.
Precaución: Estas citas no son 100% exactas.