TY  - BOOK
AU  - Perrins,Christopher M.
AU  - Lebreton,J.D.
AU  - Hirons,G.J.M.
TI  - Bird population studies: relevance to conservation and management 
SN  - 0198577303 :
U1  - 639.978 
PY  - 1991///
CY  - Oxford, New York
PB  - Oxford University Press
KW  - Bird populations
KW  - Birds
KW  - Conservation
KW  - Aves
KW  - Conservación
KW  - poblaciones de aves
N1  - Includes bibliographical references and index
UR  - http://www.loc.gov/catdir/enhancements/fy0636/90041974-d.html
UR  - http://www.loc.gov/catdir/enhancements/fy0636/90041974-t.html
ER  -