TY  - BOOK
AU  - Hawksworth,D.L.
TI  - Biodiversity :measurement and estimation / (Acc. 4624): measurement and estimation 
SN  - 041262480X (acidfree paper)
U1  - 333.9 HAW 22
PY  - 1995///
CY  - London
PB  - Royal Society, Chapman & Hall
KW  - Biological diversity
ER  -