Taxonomy of vascular plants/
Lawrence, George H. M.
Taxonomy of vascular plants/ George H. M. Lawrence - New York, Macmillan 1951 - xiii, 823p.; ill. Hbk.
Plants--Classification.
QK93.L38 1951
Taxonomy of vascular plants/ George H. M. Lawrence - New York, Macmillan 1951 - xiii, 823p.; ill. Hbk.
Plants--Classification.
QK93.L38 1951