TY - MANSCPT AU - FOSTER,STEVEN AND JAMES A.DUKE TI - A FIELD GUIDE TO MEDICINAL PLANTS: EASTERN AND CENTRAL NORTH AMERICA PY - 1990/// CY - BOSTON PB - HOUGHTON MIFFLIN COMPANY KW - MEDICINAL PLANTS -- CANADA EASTERN -- IDENTIFICATION KW - MEDICINAL PLANTS -- EAST (U.S.) -- IDENTIFICATION KW - MEDICINAL PLANTS -- MIDDLE WEST -- IDENTIFICATION ER -