TY  - BOOK
AU  - Sutherland,J.William;
TI  - Ecologial census techniques: A handbook
SN  - 0521635144
U1  - 577.ECO 1997. 
PY  - 1997///
CY  - UK
PB  - Cambridge University Press
KW  - Biology
N1  - includes index
ER  -