The families and genera of vascular plants : Vol. 1 : Pteridophytes and gymnosperms /
edited by K. Kubitzki ; vol. ed. K. U. Kramer and P. S. Green.
- Berlin [etc.] : Springer, 1990.
- xii, 404 p. : zahlr. Ill 28 cm
- The families and genera of vascular plants Vol. 1 .