TY - BOOK AU - Upton Hatch L(ed.) AU - Swisher Marilyn E(ed.) TI - Managed ecosystems: : the mesoamerican experiences SN - 9780195102604 U1 - 333.7 PY - 1999/// CY - Oxford PB - Oxford University Press KW - Sustainable Agriculture KW - Ecology Agricultural KW - Social Sciences ER -