TY  - BOOK
AU  - Sutherland,William J
TI  - Ecological census techniques: a handbook 
SN  - 0-521-47244-x
U1  - 574.5/028 20
PY  - 1996///
CY  - Cambridge, New York
PB  - Cambridge University Press
KW  - Ecological survey
KW  - Methodology
KW  - Inventarios ecológicos
KW  - Metodología
N1  - Includes bibliographical references and index
ER  -