Thomas, John Owen 1904- Common British grasses and legumes / by J. O. Thomas and L. J. Davies. - 4th ed. - London : Longmans, c1964 [Impression 1967] - 122 p. : illus. ; 23 cm. Bibliography: p. 114. Subjects--Topical Terms: Grasses--Great Britain.Legumes. Dewey Class. No.: 584.90941 / THC 1967