Plant taxonomy.
Heywood, V H.
Plant taxonomy. by V H Heywood. - London. ELBS and Edward Arnold. [19-?] - 60p. : plates.; 22cm.- - The Institute of Biology's studies in bilogy. no.5. .
582 / HEY
Plant taxonomy. by V H Heywood. - London. ELBS and Edward Arnold. [19-?] - 60p. : plates.; 22cm.- - The Institute of Biology's studies in bilogy. no.5. .
582 / HEY