Clonal Forestry I: Genetics and Biotechnology. Edited by M. R. Ahuja, and W. J. Libby. Springer-Verlag, Berlin and Heidelberg. 1993. 277 pages; 32 figures (including photographs). Price DM. 198.00. ISBN 3 540 52501 7. - Clonal Forestry II: Conservation and Application. Edited by M. R. Ahuja, and W. J. Libby. Springer-Verlag, Berlin and Heidelberg. 1993. 240 pages; 34 figures (including photographs). Price DM. 198.00. ISBN 3 540 55714 8.