Allen, O. N. The leguminosae; a source book of characteristics, uses, and nodulation - Madison, Wis., : University of Wisconsin, 1981 - 812 p. : ilus LCCN: 19096 Subjects--Topical Terms: Leguminosas.Nitrógeno--Fijación.Rhizobium. Dewey Class. No.: 583.32 / A55