TY  - BOOK
AU  - Pollard,E.
AU  - Yates,T.J.
ED  - Institute of Terrestrial Ecology
ED  - Joint Nature Conservation Committee (Great Britain)
TI  - Monitoring butterflies for ecology and conservation: the British butterfly monitoring scheme 
SN  - 0412402203
PY  - 1993///
CY  - London
PB  - Chapman & Hall
KW  - Butterflies
KW  - United Kingdom
KW  - Ecology
KW  - Monitoring
KW  - Wildlife conservation
N1  - 'Published in association with the Institute of Terrestrial Ecology (Natural Environmental Research Council) and the Joint Nature Conservation Committee'; Includes bibliographical references and index
ER  -