A FIELD GUIDE TO MEDICINAL PLANTS
FOSTER, STEVEN AND JAMES A. DUKE
A FIELD GUIDE TO MEDICINAL PLANTS EASTERN AND CENTRAL NORTH AMERICA - BOSTON HOUGHTON MIFFLIN COMPANY 1990
MEDICINAL PLANTS -- CANADA EASTERN -- IDENTIFICATION
MEDICINAL PLANTS -- EAST (U.S.) -- IDENTIFICATION
MEDICINAL PLANTS -- MIDDLE WEST -- IDENTIFICATION
A FIELD GUIDE TO MEDICINAL PLANTS EASTERN AND CENTRAL NORTH AMERICA - BOSTON HOUGHTON MIFFLIN COMPANY 1990
MEDICINAL PLANTS -- CANADA EASTERN -- IDENTIFICATION
MEDICINAL PLANTS -- EAST (U.S.) -- IDENTIFICATION
MEDICINAL PLANTS -- MIDDLE WEST -- IDENTIFICATION