TY  - BOOK
AU  - Sutherland,William J., x
AU  - x
TI  - Ecological census techniques: A handbook
SN  - 0521635144
U1  - 574.5028/S966e 
PY  - 1996///
CY  - Cambridge
PB  - University Press
KW  - Ecological survey - Methodology
KW  - Biology
N1  - x
ER  -