Checklist of names for 3000 vascular plants of economic importance
Terrell, E.D.
Checklist of names for 3000 vascular plants of economic importance - Washington 1977 - 201 p. - No. 505; United States Departm .
Checklist of names for 3000 vascular plants of economic importance - Washington 1977 - 201 p. - No. 505; United States Departm .